Q: Is 145,724 a Prime Number?
A: No, 145,724 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 145724 can be evenly divided by 1 2 4 17 34 68 2,143 4,286 8,572 36,431 72,862 and 145,724, with no remainder.
Since 145,724 cannot be divided by just 1 and 145,724, it is not a prime number.