74074...72279 (2693-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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(6 + 66 + 666 + 6666 + ... + 666...666) + 1 is the smallest titanic prime and largest known prime of this form. [Sariyar]

Submitted: 2020-08-19 17:55:18; Last Modified: 2020-08-20 01:22:14.