Q: Is 142,458 a Prime Number?
A: No, 142,458 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 142458 can be evenly divided by 1 2 3 6 23,743 47,486 71,229 and 142,458, with no remainder.
Since 142,458 cannot be divided by just 1 and 142,458, it is not a prime number.