8887

This number is a prime.

+ The largest prime formed by concatenating in descending order two consecutive double-digit numbers. [Loungrides]

+ 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]

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