Q: Is 21,042,500 a Composite Number?

 A: Yes, 21,042,500 is a composite number.

Why is 21,042,500 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 21,042,500 can be evenly divided by 1 2 4 5 10 19 20 25 38 50 76 95 100 125 190 250 380 443 475 500 625 886 950 1,250 1,772 1,900 2,215 2,375 2,500 4,430 4,750 8,417 8,860 9,500 11,075 11,875 16,834 22,150 23,750 33,668 42,085 44,300 47,500 55,375 84,170 110,750 168,340 210,425 221,500 276,875 420,850 553,750 841,700 1,052,125 1,107,500 2,104,250 4,208,500 5,260,625 10,521,250 and 21,042,500, with no remainder.

Since 21,042,500 cannot be divided by just 1 and 21,042,500, it is a composite number.


More Examples

Number 21,042,49821,042,49921,042,50121,042,502
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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