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Reply to "Ben's Buddies 2"

Largest known prime number found so far found is  2136,279,841 − 1. That works out as a rather large number. Starts with 8 and ends with 1 but has 41,024,318 digits in between. There's a youtube clip which shows the number but at a very fast frame rate as it would take a very long time to show at a viewable rate.
https://www.youtube.com/watch?v=zsyGRDrDfbI

2136,279,841 − 1 is what is called a Mersenne prime number. Those are always 2 to the power of a prime number less 1. For instance 2 to the power of 3 (a prime number) is 8, 8 less 1 is 7 which is a prime number. There are only 52 such Mersenne prime numbers found so far.

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