13285...68421 (1000-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

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The smallest known titanic hailstone prime (formed using starting number 1328544). See PC421. [Sariyar]

Submitted: 2022-01-28 16:40:47;   Last Modified: 2022-01-28 17:07:44.
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