|
|
|
Curios:
Curios Search:
Participate:
|
will be down at times on those day (and possibly the next). (caldwell@utm.edu) 142 is the smallest integer in which the sum of all its divisors, including itself, is equal to the product of the cubes of the first two prime numbers (142 + 71 + 2 + 1 = 216 = 23 x 33). [Cramer] 142 is the smallest Semi-prime (having exactly 2 prime factors), whose sum of divisors is a cube. [Gupta]
Prime Curios! © 1999-2008 (all rights
reserved)
|