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Old 2016-04-17, 16:59   #6
a1call's Avatar
"Rashid Naimi"
Oct 2015
Remote to Here/There

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Originally Posted by wblipp View Post

Factordb says that it is proven by N-1, although Factordb knows of no prime factors for N-1. It does know of two 4K+ composite factors. I've not seen this before - do you know more about this that might make sense?
Well the certificate says:

[PRIMO - Primality Certificate]
Version=4.1.1 - LX64
So perhaps it's related to this thread:
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