+0  
 
0
28
1
avatar

How many positive integers less than 500 are the product of exactly two distinct (meaning different) primes, each of which is greater than 10?

 Oct 4, 2021
 #1
avatar
0

(143, 187, 209, 221, 247, 253, 299, 319, 323, 341, 377, 391, 403, 407, 437, 451, 473, 481, 493) >>Total =  19 - all numbers < 500 with 2 distinct prime factors > 10 each.

 Oct 5, 2021

46 Online Users