Q: Is 564,421 a Prime Number?
A: No, 564,421 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 564421 can be evenly divided by 1 11 13 143 3,947 43,417 51,311 and 564,421, with no remainder.
Since 564,421 cannot be divided by just 1 and 564,421, it is not a prime number.