50000010000001
This number is a prime.
5000 0010000001
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Prime number occurring at the midpoint from the 10,000,001st row of Floyd's triangle (((10000002*10000001)/2 (10000001*10000000)/2+1)/2). [Barnes]
Submitted: 2020-02-11 22:20:29; Last Modified: 2020-02-12 00:06:00.
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