Q: Is 57,421 a Prime Number?
A: No, 57,421 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 57421 can be evenly divided by 1 7 13 91 631 4,417 8,203 and 57,421, with no remainder.
Since 57,421 cannot be divided by just 1 and 57,421, it is not a prime number.