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Old 2020-05-23, 13:56   #7
kriesel
 
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Mar 2017
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Quote:
Originally Posted by Glenio View Post
This is the number 2^102589933
That number is composite (not prime) by definition. ba for b>1, a>1, a and b integer, is composite; b is a factor. This may win the prize for most obviously NOT prime (which is public embarrassment). It has one prime factor and over a hundred million distinct composite factors 21, 22, 23, ..., 2102589932.
https://www.mersenneforum.org/showpo...65&postcount=3
It also happens to have a superficial relationship to the largest known Mersenne prime, 282589933-1, whose exponent is 20M less.
See also, for the perfect record of predicting large primes,by various means, https://www.mersenneforum.org/showpo...04&postcount=5
Possibilities, more likely first: Inaccurate post lacking +-c, trolling, combination, computation error, something else, new prime discovery.

In the very unlikely event that it's a Mersenne prime discovery, verification should have quietly occurred without posting an exponent, then announcement via MRI Inc. press release. https://www.mersenneforum.org/showpo...5&postcount=14

Last fiddled with by kriesel on 2020-05-23 at 14:27
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