Q: Is 143,199 a Prime Number?

A: No, 143,199 is not a prime number.

Why is 143,199 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 143199 can be evenly divided by 1 3 7 9 21 63 2,273 6,819 15,911 20,457 47,733 and 143,199, with no remainder.

Since 143,199 cannot be divided by just 1 and 143,199, it is not a prime number.

Number	143,197	143,198	143,200	143,201
Prime?	yes	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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