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Which of the following is the smallest four-digit integer that is divi

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Sajjad1994
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Which of the following is the smallest four-digit integer that is divi [#permalink] New post   28 Apr 2019, 17:34
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Which of the following is the smallest four-digit integer that is divisible by the first three prime numbers?

A. 120
B. 150
C. 1020
D. 1025
E. 1060
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C
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IanStewart
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Re: Which of the following is the smallest four-digit integer that is divi [#permalink] New post   29 Apr 2019, 05:17
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We need a number divisible by 2, 3, and 5. If a number is divisible by both 2 and 5, it is divisible by 10, so it ends in a '0'. If a number is divisible by 3, the sum of its digits is a multiple of 3. So only answers A, B and C are divisible by all three of 2, 3, and 5. But we also need the smallest four-digit number that meets the criteria, and of our remaining options, only answer C, 1020, is a four-digit number.
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Re: Which of the following is the smallest four-digit integer that is divi [#permalink] New post   29 Apr 2019, 08:01
SajjadAhmad wrote:
Which of the following is the smallest four-digit integer that is divisible by the first three prime numbers?

A. 120
B. 150
C. 1020
D. 1025
E. 1060


SajjadAhmad are given answer options correct? question has asked for 4 digit no . answer options a & b are 3 digit ? strange? :|

anyways ; coming to question ; factorize given options 4 digit only we see option C is the smallest and is factored by 2,3,5 which are the first three prime
IMO C
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Re: Which of the following is the smallest four-digit integer that is divi [#permalink] New post   01 May 2019, 01:55
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That's why it is non-official source, question has been double checked and is fine per the source.

Archit3110 wrote:
SajjadAhmad wrote:
Which of the following is the smallest four-digit integer that is divisible by the first three prime numbers?

A. 120
B. 150
C. 1020
D. 1025
E. 1060


SajjadAhmad are given answer options correct? question has asked for 4 digit no . answer options a & b are 3 digit ? strange? :|

anyways ; coming to question ; factorize given options 4 digit only we see option C is the smallest and is factored by 2,3,5 which are the first three prime
IMO C
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Re: Which of the following is the smallest four-digit integer that is divi [#permalink]
01 May 2019, 01:55
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