Q: Is 143,145 a Prime Number?

 A: No, 143,145 is not a prime number.

Why is 143,145 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 143145 can be evenly divided by 1 3 5 9 15 45 3,181 9,543 15,905 28,629 47,715 and 143,145, with no remainder.

Since 143,145 cannot be divided by just 1 and 143,145, it is not a prime number.


More Examples

Number 143,143143,144143,146143,147
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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