Q: Is 21,420,798 a Composite Number?

 A: Yes, 21,420,798 is a composite number.

Why is 21,420,798 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 21,420,798 can be evenly divided by 1 2 3 6 7 14 21 42 53 106 159 318 371 742 1,113 2,226 9,623 19,246 28,869 57,738 67,361 134,722 202,083 404,166 510,019 1,020,038 1,530,057 3,060,114 3,570,133 7,140,266 10,710,399 and 21,420,798, with no remainder.

Since 21,420,798 cannot be divided by just 1 and 21,420,798, it is a composite number.


More Examples

Number 21,420,79621,420,79721,420,79921,420,800
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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