Q: Is 143,289 a Prime Number?
A: No, 143,289 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 143289 can be evenly divided by 1 3 9 27 29 61 81 87 183 261 549 783 1,647 1,769 2,349 4,941 5,307 15,921 47,763 and 143,289, with no remainder.
Since 143,289 cannot be divided by just 1 and 143,289, it is not a prime number.