Q: Is 12,400,245 a Composite Number?

Why is 12,400,245 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 12,400,245 can be evenly divided by 1 3 5 9 11 13 15 33 39 41 45 47 55 65 99 117 123 141 143 165 195 205 235 369 423 429 451 495 517 533 585 611 615 705 715 1,287 1,353 1,551 1,599 1,833 1,845 1,927 2,115 2,145 2,255 2,585 2,665 3,055 4,059 4,653 4,797 5,499 5,781 5,863 6,435 6,721 6,765 7,755 7,995 9,165 9,635 17,343 17,589 20,163 20,295 21,197 23,265 23,985 25,051 27,495 28,905 29,315 33,605 52,767 60,489 63,591 75,153 86,715 87,945 100,815 105,985 125,255 190,773 225,459 263,835 275,561 302,445 317,955 375,765 826,683 953,865 1,127,295 1,377,805 2,480,049 4,133,415 and 12,400,245, with no remainder.

Since 12,400,245 cannot be divided by just 1 and 12,400,245, 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).