Q: Is 421,497 a Prime Number?
A: No, 421,497 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 421497 can be evenly divided by 1 3 9 27 67 201 233 603 699 1,809 2,097 6,291 15,611 46,833 140,499 and 421,497, with no remainder.
Since 421,497 cannot be divided by just 1 and 421,497, it is not a prime number.