Q: Is 139,540 a Prime Number?
A: No, 139,540 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 139540 can be evenly divided by 1 2 4 5 10 20 6,977 13,954 27,908 34,885 69,770 and 139,540, with no remainder.
Since 139,540 cannot be divided by just 1 and 139,540, it is not a prime number.