Q: Is 42,357 a Prime Number?
A: No, 42,357 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 42357 can be evenly divided by 1 3 7 21 2,017 6,051 14,119 and 42,357, with no remainder.
Since 42,357 cannot be divided by just 1 and 42,357, it is not a prime number.