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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exp. Prime Factor Digits Year
436741187348237 ~1983
43677491310324719 ~1986
4368113611535838 ~1985
436813187362637 ~1983
436825187365037 ~1983
4368307698929138 ~1985
436832387366477 ~1983
436835987367197 ~1983
4368521349481698 ~1984
436859987371997 ~1983
43686491048475779 ~1986
4368691698990578 ~1985
4368761262125678 ~1984
436897187379437 ~1983
4368971349517698
4369061262143678 ~1984
436919987383997 ~1983
436928387385677 ~1983
436951187390237 ~1983
4369537262172238 ~1984
4369537699125938
436967987393597 ~1983
4369801262188078 ~1984
4369933961385278 ~1985
437027987405597 ~1983
Exp. Prime Factor Digits Year
4370281262216878 ~1984
437033987406797 ~1983
4370407786673278 ~1985
437065187413037 ~1983
43707533146942179 ~1987
4370761262245678 ~1984
4370767699322738 ~1985
4371019786783438 ~1985
437113187422637 ~1983
4371151699384178 ~1985
4371293262277598 ~1984
43713471049123299 ~1986
43714074983403999 ~1987
437155187431037 ~1983
4371677262300638 ~1984
437179187435837 ~1983
4372037349762978 ~1984
437221187444237 ~1983
4372237262334238 ~1984
4372279787010238 ~1985
4372289349783138 ~1984
4372477262348638 ~1984
437255987451197 ~1983
4372733612182638 ~1985
437288387457677 ~1983
Exp. Prime Factor Digits Year
4373027349842178 ~1984
43730696647064899 ~1987
4373153612241438 ~1985
4373261349860898 ~1984
4373297262397838 ~1984
43733091399458899 ~1986
4373333262399998 ~1984
437339987467997 ~1983
4373441349875298 ~1984
437345987469197 ~1983
4373647437364718 ~1985
4373683437368318 ~1985
437395187479037 ~1983
4373969612355678 ~1985
4373977262438638 ~1984
43740591049774179 ~1986
4374079437407918 ~1985
4374079241449160910
437417987483597 ~1983
4374187787353678 ~1985
437429987485997 ~1983
437432387486477 ~1983
4374353612409438 ~1985
4374571699931378 ~1985
4374653612451438 ~1985
Exp. Prime Factor Digits Year
437480387496077 ~1983
4375039154001372910 ~1988
4375153262509198 ~1984
4375169350013538 ~1984
43753213062724719 ~1987
4375411437541118 ~1985
4375487787587678 ~1985
4375577262534638 ~1984
4375621262537278 ~1984
4375669962647198 ~1985
437579987515997 ~1983
4375831700132978 ~1985
437588387517677 ~1983
4375913262554798 ~1984
4376173262570398 ~1984
43767172100824179 ~1986
4376851787833198 ~1985
4376947437694718 ~1985
4376947700311538
437695187539037 ~1983
4376951350156098
4377257350180578 ~1984
43774731313241919 ~1986
437753987550797 ~1983
43775593939803119 ~1987
663
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26-09-27