30
This number is a composite.
Just showing those entries submitted by 'Post': (Click here to show all)
Least integer the sum of whose distinct semiprime factors
is prime. Semiprimes (6, 10, 15) divide 30, and 6 + 10 + 15
= 31. [Post]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell