Q: Is 343,643 a Prime Number?
A: No, 343,643 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 343643 can be evenly divided by 1 23 67 223 1,541 5,129 14,941 and 343,643, with no remainder.
Since 343,643 cannot be divided by just 1 and 343,643, it is not a prime number.