Q: Is 420,597 a Prime Number?
A: No, 420,597 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 420597 can be evenly divided by 1 3 9 17 51 153 2,749 8,247 24,741 46,733 140,199 and 420,597, with no remainder.
Since 420,597 cannot be divided by just 1 and 420,597, it is not a prime number.