Q: Is 128,724 a Prime Number?
A: No, 128,724 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 128724 can be evenly divided by 1 2 3 4 6 12 17 34 51 68 102 204 631 1,262 1,893 2,524 3,786 7,572 10,727 21,454 32,181 42,908 64,362 and 128,724, with no remainder.
Since 128,724 cannot be divided by just 1 and 128,724, it is not a prime number.