Q: Is 139,865 a Prime Number?
A: No, 139,865 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 139865 can be evenly divided by 1 5 11 55 2,543 12,715 27,973 and 139,865, with no remainder.
Since 139,865 cannot be divided by just 1 and 139,865, it is not a prime number.