Q: Is 143,491 a Prime Number?
A: No, 143,491 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 143491 can be evenly divided by 1 43 47 71 2,021 3,053 3,337 and 143,491, with no remainder.
Since 143,491 cannot be divided by just 1 and 143,491, it is not a prime number.