Q: Is 138,375 a Prime Number?
A: No, 138,375 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 138375 can be evenly divided by 1 3 5 9 15 25 27 41 45 75 123 125 135 205 225 369 375 615 675 1,025 1,107 1,125 1,845 3,075 3,375 5,125 5,535 9,225 15,375 27,675 46,125 and 138,375, with no remainder.
Since 138,375 cannot be divided by just 1 and 138,375, it is not a prime number.