Posted by Kaitlyn on .
An odd number is less than 160 and has exactly three defferent prime factors. What is the number? Explain your reasoning.
???
AAAH! help!

Math 
Reiny,
the first few primes are 3,5,7,11,13,...
if we are to take any 3 and multiply, the only combination that is under 160 is
3x5x7 = 105
if we try to include the next prime, the 11, our product will be greater than 160 (3x5x11 = 165)
so 105 it is !