Q: Is 426,621 a Prime Number?
A: No, 426,621 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 426621 can be evenly divided by 1 3 13 39 10,939 32,817 142,207 and 426,621, with no remainder.
Since 426,621 cannot be divided by just 1 and 426,621, it is not a prime number.