Q: Is 138,928 a Prime Number?
A: No, 138,928 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 138928 can be evenly divided by 1 2 4 8 16 19 38 76 152 304 457 914 1,828 3,656 7,312 8,683 17,366 34,732 69,464 and 138,928, with no remainder.
Since 138,928 cannot be divided by just 1 and 138,928, it is not a prime number.