Q: Is 138,724 a Prime Number?
A: No, 138,724 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 138724 can be evenly divided by 1 2 4 79 158 316 439 878 1,756 34,681 69,362 and 138,724, with no remainder.
Since 138,724 cannot be divided by just 1 and 138,724, it is not a prime number.