Q: Is 137,728 a Prime Number?
A: No, 137,728 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 137728 can be evenly divided by 1 2 4 8 16 32 64 128 256 269 512 538 1,076 2,152 4,304 8,608 17,216 34,432 68,864 and 137,728, with no remainder.
Since 137,728 cannot be divided by just 1 and 137,728, it is not a prime number.