Q: Is 513,421 a Prime Number?
A: No, 513,421 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 513421 can be evenly divided by 1 67 79 97 5,293 6,499 7,663 and 513,421, with no remainder.
Since 513,421 cannot be divided by just 1 and 513,421, it is not a prime number.