1

This number is a unit (so is neither prime nor composite).

Single Curio View: (Seek other curios for this number)

1-digit nonprime solutions using all of the 1-digit primes: [7+3/5*2] = 1; [7-5-3+2] = 1; [7+5/3!*2] = 1; [5*3-7*2] = 1. [Worrom]

Submitted: 2021-12-06 20:47:36; Last Modified: 2022-02-21 17:33:53.