Q: Is 142,390 a Prime Number?
A: No, 142,390 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 142390 can be evenly divided by 1 2 5 10 29 58 145 290 491 982 2,455 4,910 14,239 28,478 71,195 and 142,390, with no remainder.
Since 142,390 cannot be divided by just 1 and 142,390, it is not a prime number.