Q: Is 143,523 a Prime Number?

A: No, 143,523 is not a prime number.

Why is 143,523 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 143523 can be evenly divided by 1 3 9 37 111 333 431 1,293 3,879 15,947 47,841 and 143,523, with no remainder.

Since 143,523 cannot be divided by just 1 and 143,523, it is not a prime number.

Number	143,521	143,522	143,524	143,525
Prime?	no	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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