This number is a composite.
Single Curio View: (Seek other curios for this number)42 is the smallest number k that is equal to the sum of the nonprime proper divisors of k, i.e., 42 = 1 + 6 + 14 + 21. Integers with this property are the product of a perfect number and a Carol prime. [Honaker]
Submitted: 2020-01-26 08:57:30; Last Modified: 2022-11-22 11:22:45.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell