A300359 Primes of a056240-type 3.
4327, 6947, 7283, 7993, 11863, 12143, 14591, 15859, 18583, 18617, 18839, 18947, 19661, 20593, 21059, 21313, 22853, 29567, 29917, 31307, 32531, 32831, 35023, 35491, 35671, 39499, 39659, 40343, 41579, 42821, 43853, 46807, 48221, 49253, 49363, 49597, 50411, 51109, 52667, 54401
Offset: 1
Keywords
Examples
4327 is included because the smallest composite number whose sum of prime factors (with repetition)=4327 is 526809=4283*123, a multiple of the third prime below 4327 (not the first or second). 4327~3(30,8,6) is the smallest prime to have this property. Likewise 6947~3(30,6,4), and 7993~3(30,12,2).
Extensions
Edited by N. J. A. Sloane, Mar 10 2018