Q: Is 643,297 a Prime Number?
A: No, 643,297 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 643297 can be evenly divided by 1 17 79 479 1,343 8,143 37,841 and 643,297, with no remainder.
Since 643,297 cannot be divided by just 1 and 643,297, it is not a prime number.