Q: Is 138,775 a Prime Number?
A: No, 138,775 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 138775 can be evenly divided by 1 5 7 13 25 35 61 65 91 175 305 325 427 455 793 1,525 2,135 2,275 3,965 5,551 10,675 19,825 27,755 and 138,775, with no remainder.
Since 138,775 cannot be divided by just 1 and 138,775, it is not a prime number.