# 77

This number is a composite.

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There are 77 minimal non-single-digit primes, i.e., primes
with greater than or equal to two digits such that deleting
any number of its digits never gives another prime with
greater than or equal to two digits. [Xayah]
Submitted: 2021-01-24 02:21:07; Last Modified: 2021-01-24 14:10:21.

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