Q: Is 143,577 a Prime Number?
A: No, 143,577 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 143577 can be evenly divided by 1 3 7 9 21 43 53 63 129 159 301 371 387 477 903 1,113 2,279 2,709 3,339 6,837 15,953 20,511 47,859 and 143,577, with no remainder.
Since 143,577 cannot be divided by just 1 and 143,577, it is not a prime number.