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Updated on: 01 Aug 2008, 08:55
Originally posted by arjtryarjtry on 01 Aug 2008, 04:33.
Last edited by arjtryarjtry on 01 Aug 2008, 08:55, edited 2 times in total.
Last edited by arjtryarjtry on 01 Aug 2008, 08:55, edited 2 times in total.
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. Integer m has 4 different prime factors and n has 3 different prime factors. If m and n has the greatest common prime factor of 15, how many different prime factors does m*n have?
A. 4
B. 5
C. 6
D. 7
E. 8
ignore the part in the red...
the ans should be 2common(3,5)along with 2 factors from m, and 1 from n
so 2+2+1=5
A. 4
B. 5
C. 6
D. 7
E. 8
ignore the part in the red...
the ans should be 2common(3,5)along with 2 factors from m, and 1 from n
so 2+2+1=5
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01 Aug 2008, 05:37
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arjtryarjtry
I don't get this. 15 is the least common denominator or something else?
01 Aug 2008, 06:35
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arjtryarjtry
Excuse me but 15 is not prime. What is the exact question ?
