91511...84001 (23707-digits)

This number is a composite.

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This 23707-digit number is a pseudoprime in every base less than 10^1100, yet it has 524286 proper divisors. [Broadhurst]

Submitted: 2004-05-18 00:42:18;   Last Modified: 2021-05-12 20:40:25.
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