N is the product of all the prime numbers less than 100.
Determine the last three digits of N.
*** For an extra challenge, solve this puzzle without the aid of a computer program.
(In reply to
re: twothirds of a solution. by Matt)
It doesnt work this way. Consider multiplying 2 twodigit numbers. The digit in the tens place is the sum of two products plus any carries.
That thirdfromtheend zero is the sum of many subproducts, not just the product of 2 and 5.

Posted by Jer
on 20111019 13:57:49 