



 
Hi Wilson. Q. What happens if you multiply an odd number by an odd number? If you multiply an even times an odd or two even you get an even number the number you are looking for must be the product of odd primes. Let's make your problem easier.
3 is an answer since the factors of 3 are 1 and 3.
What about 3 x 5 = 15? This has 4 factors, 1, 3, 5 and 15. So what about 3 x 3 = 3^{2} = 9? This works since the factors are 1, 3 and 9.
Stephen La Rocque and Harley Weston.  


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