Q: Is 142,578 a Prime Number?
A: No, 142,578 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 142578 can be evenly divided by 1 2 3 6 9 18 89 178 267 534 801 1,602 7,921 15,842 23,763 47,526 71,289 and 142,578, with no remainder.
Since 142,578 cannot be divided by just 1 and 142,578, it is not a prime number.