Q: Is 421,197 a Prime Number?
A: No, 421,197 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 421197 can be evenly divided by 1 3 7 21 31 93 217 647 651 1,941 4,529 13,587 20,057 60,171 140,399 and 421,197, with no remainder.
Since 421,197 cannot be divided by just 1 and 421,197, it is not a prime number.