Q: Is 426,721 a Prime Number?
A: No, 426,721 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 426721 can be evenly divided by 1 19 37 607 703 11,533 22,459 and 426,721, with no remainder.
Since 426,721 cannot be divided by just 1 and 426,721, it is not a prime number.