Q: Is 143,955 a Prime Number?

A: No, 143,955 is not a prime number.

Why is 143,955 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 143955 can be evenly divided by 1 3 5 7 9 15 21 35 45 63 105 315 457 1,371 2,285 3,199 4,113 6,855 9,597 15,995 20,565 28,791 47,985 and 143,955, with no remainder.

Since 143,955 cannot be divided by just 1 and 143,955, it is not a prime number.

Number	143,953	143,954	143,956	143,957
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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