Q: Is 129,128 a Prime Number?
A: No, 129,128 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 129128 can be evenly divided by 1 2 4 8 16,141 32,282 64,564 and 129,128, with no remainder.
Since 129,128 cannot be divided by just 1 and 129,128, it is not a prime number.