Prime Curios!: 112

112
(another Prime Pages' Curiosity)

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112 = 2⁴ * 7. Note that 7⁴ - 2 is prime. [Luhn]

The only 3-digit number such that its factorial raised to the sum of its digits and increased by one is prime. I.e., 112!^(1+1+2)+1 is prime. [Opao]

112!*211! - 1 is prime. [Firoozbakht]

(There is one curio for this number that has not yet been approved by an editor.)

To link to this page use http://primes.utm.edu/curios/page.php?number_id=749