8887
This number is a prime.
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The largest 4-digit prime p with a maximum of 6 loops. Note that (88-87) + p is the largest 4-digit repdigit number
with a maximum of 8 loops, where 8 is the repdigit digit. [Worrom]
Submitted: 2022-03-13 19:20:23; Last Modified: 2022-03-13 22:49:19.
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