Q: Is 861,142 a Prime Number?
A: No, 861,142 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 861142 can be evenly divided by 1 2 430,571 and 861,142, with no remainder.
Since 861,142 cannot be divided by just 1 and 861,142, it is not a prime number.