Q: Is 121,155 a Composite Number?

 A: Yes, 121,155 is a composite number.

Why is 121,155 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 121,155 can be evenly divided by 1 3 5 15 41 123 197 205 591 615 985 2,955 8,077 24,231 40,385 and 121,155, with no remainder.

Since 121,155 cannot be divided by just 1 and 121,155, it is a composite number.


More Examples

Number 121,153121,154121,156121,157
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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