Q: Is 21,402,738 a Composite Number?

 A: Yes, 21,402,738 is a composite number.

Why is 21,402,738 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 21,402,738 can be evenly divided by 1 2 3 6 7 9 14 18 21 27 41 42 54 63 82 123 126 189 246 287 369 378 574 738 861 1,107 1,381 1,722 2,214 2,583 2,762 4,143 5,166 7,749 8,286 9,667 12,429 15,498 19,334 24,858 29,001 37,287 56,621 58,002 74,574 87,003 113,242 169,863 174,006 261,009 339,726 396,347 509,589 522,018 792,694 1,019,178 1,189,041 1,528,767 2,378,082 3,057,534 3,567,123 7,134,246 10,701,369 and 21,402,738, with no remainder.

Since 21,402,738 cannot be divided by just 1 and 21,402,738, it is a composite number.


More Examples

Number 21,402,73621,402,73721,402,73921,402,740
Composite? yesyesnoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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