33333...33331 (40-digits)
This number is a prime.
3333333333 3333333333 3333333333 3333333331
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A triadic (or 3-way) near-repdigit prime consisting of thirty-nine threes followed by a one. [Schiffman]
Submitted: 2026-01-11 18:59:13; Last Modified: 2026-01-11 19:03:23.
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