Q: Is 123,321 a Prime Number?
A: No, 123,321 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 123321 can be evenly divided by 1 3 11 33 37 101 111 303 407 1,111 1,221 3,333 3,737 11,211 41,107 and 123,321, with no remainder.
Since 123,321 cannot be divided by just 1 and 123,321, it is not a prime number.