Q: Is 644,429 a Prime Number?
A: No, 644,429 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 644429 can be evenly divided by 1 37 17,417 and 644,429, with no remainder.
Since 644,429 cannot be divided by just 1 and 644,429, it is not a prime number.