Q: Is 121,428 a Prime Number?
A: No, 121,428 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 121428 can be evenly divided by 1 2 3 4 6 9 12 18 36 3,373 6,746 10,119 13,492 20,238 30,357 40,476 60,714 and 121,428, with no remainder.
Since 121,428 cannot be divided by just 1 and 121,428, it is not a prime number.