Q: Is 420,604 a Prime Number?
A: No, 420,604 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 420604 can be evenly divided by 1 2 4 71 142 284 1,481 2,962 5,924 105,151 210,302 and 420,604, with no remainder.
Since 420,604 cannot be divided by just 1 and 420,604, it is not a prime number.