Q: Is 121,455 a Prime Number?
A: No, 121,455 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 121455 can be evenly divided by 1 3 5 9 15 45 2,699 8,097 13,495 24,291 40,485 and 121,455, with no remainder.
Since 121,455 cannot be divided by just 1 and 121,455, it is not a prime number.