Q: Is 421,137 a Prime Number?
A: No, 421,137 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 421137 can be evenly divided by 1 3 9 73 219 641 657 1,923 5,769 46,793 140,379 and 421,137, with no remainder.
Since 421,137 cannot be divided by just 1 and 421,137, it is not a prime number.