The book is now available! 21143...89407 (13660-digits)
(just those submitted by Earls)
Prime Curios!
Curios: Curios Search:


Just showing those entries submitted by 'Earls': (Click here to show all)

+ 40233*2^45360-1 is prime. Note that 45360 is a highly composite number with exactly 100 divisors. Also, if you sum the squared digits of 40233*2^45360-1 you get the prime 393683. [Earls]

Prime Curios! © 2000-2018 (all rights reserved)