**>>> Testing new web page format**problems? suggestions?

# 468

4-6-8 are the first three composite digits. Note that there is a mean gap of exactly 4 between primes less than the 68th prime. [Honaker]

1*1! + 2*2! + 3*3! + ... + 468*468! is a titanic prime. [Firoozbakht]

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