Q: Is 21,240,520 a Composite Number?

 A: Yes, 21,240,520 is a composite number.

Why is 21,240,520 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 21,240,520 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1,960 10,837 21,674 43,348 54,185 75,859 86,696 108,370 151,718 216,740 303,436 379,295 433,480 531,013 606,872 758,590 1,062,026 1,517,180 2,124,052 2,655,065 3,034,360 4,248,104 5,310,130 10,620,260 and 21,240,520, with no remainder.

Since 21,240,520 cannot be divided by just 1 and 21,240,520, it is a composite number.


More Examples

Number 21,240,51821,240,51921,240,52121,240,522
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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