property numbers

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property numbers

by duccio » Sat Jan 17, 2009 4:01 am
Hi,
this is from gprep

If the integer n is greater than 1, is n=2?

(1) n has exactly two positive factors

(2) the difference of any two distinct positive factors of n is odd

I had problem in understanding if 1 has to be considered a positive factor or not


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Source: — Data Sufficiency |

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by bluementor » Sat Jan 17, 2009 7:27 am
Check out Ian's explanation here:

https://www.beatthegmat.com/distinct-fac ... 20560.html

-BM-