Q: Is 143,775 a Prime Number?
A: No, 143,775 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 143775 can be evenly divided by 1 3 5 9 15 25 27 45 71 75 81 135 213 225 355 405 639 675 1,065 1,775 1,917 2,025 3,195 5,325 5,751 9,585 15,975 28,755 47,925 and 143,775, with no remainder.
Since 143,775 cannot be divided by just 1 and 143,775, it is not a prime number.