Q: Is 21,459,690 a Composite Number?

Why is 21,459,690 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 21,459,690 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 23 30 35 42 45 46 63 69 70 90 105 115 126 138 161 207 210 230 315 322 345 414 483 630 690 805 966 1,035 1,449 1,481 1,610 2,070 2,415 2,898 2,962 4,443 4,830 7,245 7,405 8,886 10,367 13,329 14,490 14,810 20,734 22,215 26,658 31,101 34,063 44,430 51,835 62,202 66,645 68,126 93,303 102,189 103,670 133,290 155,505 170,315 186,606 204,378 238,441 306,567 311,010 340,630 466,515 476,882 510,945 613,134 715,323 933,030 1,021,890 1,192,205 1,430,646 1,532,835 2,145,969 2,384,410 3,065,670 3,576,615 4,291,938 7,153,230 10,729,845 and 21,459,690, with no remainder.

Since 21,459,690 cannot be divided by just 1 and 21,459,690, 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).