Q: Is 31,901 a Prime Number?
A: No, 31,901 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 31901 can be evenly divided by 1 19 23 73 437 1,387 1,679 and 31,901, with no remainder.
Since 31,901 cannot be divided by just 1 and 31,901, it is not a prime number.