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TheUltimateWinner
Joined: 23 Feb 2015
Last visit: 16 Apr 2026
Posts: 2,465
Given Kudos: 1,990
Concentration: Finance, Technology
Schools: Harvard '24 Judge '23 LBS '24 McCombs '24 Mendoza Tepper '24 Ross '24 Cox Marshall '24 Fisher Kelley '24 Jones McDonough '24 Owen '24 Terry BU Simon '24 Katz GWU Mason Babson Gabelli Foster '24 Goizueta '24 Scheller Stern '23 CBS '23 Booth '23 Haas '25 Wharton '25 Stanford '26 Johnson'23 Fuqua '23 Kellogg '23 Kenan-Flagler'23 INSEAD Aug 22 intake Olin '23 Said '23 Sloan '23 Carey Arizona "22 Yale '23 UC Davis Madison '23 Anderson '23 Carroll Carlson '23 Darden '23
Schools: Harvard '24 Judge '23 LBS '24 McCombs '24 Mendoza Tepper '24 Ross '24 Cox Marshall '24 Fisher Kelley '24 Jones McDonough '24 Owen '24 Terry BU Simon '24 Katz GWU Mason Babson Gabelli Foster '24 Goizueta '24 Scheller Stern '23 CBS '23 Booth '23 Haas '25 Wharton '25 Stanford '26 Johnson'23 Fuqua '23 Kellogg '23 Kenan-Flagler'23 INSEAD Aug 22 intake Olin '23 Said '23 Sloan '23 Carey Arizona "22 Yale '23 UC Davis Madison '23 Anderson '23 Carroll Carlson '23 Darden '23
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21 Jan 2017, 15:10
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First 50 prime numbers are given:
-------2-------3------5---------7-----------
11-----------13---------------17---------19
--------------23---------------------------29
31-----------------------------37------------
41-----------43---------------47------------
--------------53---------------------------59
61-----------------------------67------------
71-----------73---------------------------79
--------------83---------------------------89
--------------------------------97------------
101--------103--------------107--------109
------------113--------------117--------119
121--------------------------127------------
131--------------------------137--------139
-------------------------------------------149
151--------------------------157-------------
------------------------------167-------------
------------173---------------------------179
------------------------------197---------199
211-------------------------------------------
221--------223--------------227---------229
Posted from GMAT ToolKit
-------2-------3------5---------7-----------
11-----------13---------------17---------19
--------------23---------------------------29
31-----------------------------37------------
41-----------43---------------47------------
--------------53---------------------------59
61-----------------------------67------------
71-----------73---------------------------79
--------------83---------------------------89
--------------------------------97------------
101--------103--------------107--------109
------------113--------------117--------119
121--------------------------127------------
131--------------------------137--------139
-------------------------------------------149
151--------------------------157-------------
------------------------------167-------------
------------173---------------------------179
------------------------------197---------199
211-------------------------------------------
221--------223--------------227---------229
Posted from GMAT ToolKit 
21 Jan 2017, 18:55
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Dear iMyself,
I'm happy to respond.
My friend, it is unclear why you posted this. First of all, no one needs to memorize prime numbers this high---for the GMAT, knowing the prime numbers up to 30 probably would be adequate, and up to 100 would be thorough. No one needs to memorize three-digit prime numbers.
Furthermore, there are multiple mistakes in your list. You list as prime numbers three non-prime numbers:
117 = 13*9
119 = 7*17
121 = 11^2
and you omit the following primes:
163
191
193
In fact, for reference, here are all the primes up to 1000, not that anyone needs to know this:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
My friend, your post is both not useful and incorrect. That's not a good combination. Think very carefully about what you put out into the world and how it might reflect on you. It's an old saying among carpenters: measure twice, cut once. In this web-based format, we might say, think or calculate twice, and post once.
Does all this make sense?
Mike
I'm happy to respond.
My friend, it is unclear why you posted this. First of all, no one needs to memorize prime numbers this high---for the GMAT, knowing the prime numbers up to 30 probably would be adequate, and up to 100 would be thorough. No one needs to memorize three-digit prime numbers.
Furthermore, there are multiple mistakes in your list. You list as prime numbers three non-prime numbers:
117 = 13*9
119 = 7*17
121 = 11^2
and you omit the following primes:
163
191
193
In fact, for reference, here are all the primes up to 1000, not that anyone needs to know this:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
My friend, your post is both not useful and incorrect. That's not a good combination. Think very carefully about what you put out into the world and how it might reflect on you. It's an old saying among carpenters: measure twice, cut once. In this web-based format, we might say, think or calculate twice, and post once.
Does all this make sense?
Mike
General Discussion
TheUltimateWinner
Joined: 23 Feb 2015
Last visit: 16 Apr 2026
Posts: 2,465
Own Kudos:
Given Kudos: 1,990
Concentration: Finance, Technology
Schools: Harvard '24 Judge '23 LBS '24 McCombs '24 Mendoza Tepper '24 Ross '24 Cox Marshall '24 Fisher Kelley '24 Jones McDonough '24 Owen '24 Terry BU Simon '24 Katz GWU Mason Babson Gabelli Foster '24 Goizueta '24 Scheller Stern '23 CBS '23 Booth '23 Haas '25 Wharton '25 Stanford '26 Johnson'23 Fuqua '23 Kellogg '23 Kenan-Flagler'23 INSEAD Aug 22 intake Olin '23 Said '23 Sloan '23 Carey Arizona "22 Yale '23 UC Davis Madison '23 Anderson '23 Carroll Carlson '23 Darden '23
Schools: Harvard '24 Judge '23 LBS '24 McCombs '24 Mendoza Tepper '24 Ross '24 Cox Marshall '24 Fisher Kelley '24 Jones McDonough '24 Owen '24 Terry BU Simon '24 Katz GWU Mason Babson Gabelli Foster '24 Goizueta '24 Scheller Stern '23 CBS '23 Booth '23 Haas '25 Wharton '25 Stanford '26 Johnson'23 Fuqua '23 Kellogg '23 Kenan-Flagler'23 INSEAD Aug 22 intake Olin '23 Said '23 Sloan '23 Carey Arizona "22 Yale '23 UC Davis Madison '23 Anderson '23 Carroll Carlson '23 Darden '23
Posts: 2,465
Kudos:
2,457
22 Jan 2017, 07:52
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mikemcgarry
No, it doesn't make sense to me because of some confusing suggestions. They are:
1/ you said not to memorize 3 digit prime numbers. And you also said to memorize up to 30th prime number is enough. But, this 30th prime number is still 3 digit prime! Which is confusing, isn't it?
2/ how did you be sure that GMAC will not ask 3 digit primes in the exam directly or indirectly? Can you please show me any evidence regarding THIS 3 digit primes?
3/ i am student trying to take GMAT. You said upto 30th prime number is enough for GMAT but you gave me a list of upto 997 ( also you mistakenly said it is upto 1000. Actually 1000 is NOT equal to 997
! ) your suggestion and writing doesn't have any GOOD combination at all.Actually, we should "think or calculate twice, and post once!"
Thank you...
Posted from GMAT ToolKit 
