Q: Is 142,389 a Prime Number?
A: No, 142,389 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 142389 can be evenly divided by 1 3 9 13 39 117 1,217 3,651 10,953 15,821 47,463 and 142,389, with no remainder.
Since 142,389 cannot be divided by just 1 and 142,389, it is not a prime number.