Q: Is 143,402 a Prime Number?
A: No, 143,402 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 143402 can be evenly divided by 1 2 7 14 10,243 20,486 71,701 and 143,402, with no remainder.
Since 143,402 cannot be divided by just 1 and 143,402, it is not a prime number.