Q: Is 400,155 a Composite Number?

 A: Yes, 400,155 is a composite number.

Why is 400,155 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 400,155 can be evenly divided by 1 3 5 7 15 21 35 37 103 105 111 185 259 309 515 555 721 777 1,295 1,545 2,163 3,605 3,811 3,885 10,815 11,433 19,055 26,677 57,165 80,031 133,385 and 400,155, with no remainder.

Since 400,155 cannot be divided by just 1 and 400,155, it is a composite number.


More Examples

Number 400,153400,154400,156400,157
Composite? yesyesyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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