Q: Is 521,113 a Prime Number?
A: No, 521,113 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 521113 can be evenly divided by 1 19 27,427 and 521,113, with no remainder.
Since 521,113 cannot be divided by just 1 and 521,113, it is not a prime number.