Q: Is 21,375,288 a Composite Number?

Why is 21,375,288 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 21,375,288 can be evenly divided by 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 137 197 198 264 274 394 396 411 548 591 788 792 822 1,096 1,182 1,233 1,507 1,576 1,644 1,773 2,167 2,364 2,466 3,014 3,288 3,546 4,334 4,521 4,728 4,932 6,028 6,501 7,092 8,668 9,042 9,864 12,056 13,002 13,563 14,184 17,336 18,084 19,503 26,004 26,989 27,126 36,168 39,006 52,008 53,978 54,252 78,012 80,967 107,956 108,504 156,024 161,934 215,912 242,901 296,879 323,868 485,802 593,758 647,736 890,637 971,604 1,187,516 1,781,274 1,943,208 2,375,032 2,671,911 3,562,548 5,343,822 7,125,096 10,687,644 and 21,375,288, with no remainder.

Since 21,375,288 cannot be divided by just 1 and 21,375,288, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).