Q: Is 143,555 a Prime Number?
A: No, 143,555 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 143555 can be evenly divided by 1 5 28,711 and 143,555, with no remainder.
Since 143,555 cannot be divided by just 1 and 143,555, it is not a prime number.