Q: Is 31,440,045 a Composite Number?

Why is 31,440,045 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 31,440,045 can be evenly divided by 1 3 5 7 13 15 21 31 35 39 65 91 93 105 155 195 217 273 403 455 465 651 743 1,085 1,209 1,365 2,015 2,229 2,821 3,255 3,715 5,201 6,045 8,463 9,659 11,145 14,105 15,603 23,033 26,005 28,977 42,315 48,295 67,613 69,099 78,015 115,165 144,885 161,231 202,839 299,429 338,065 345,495 483,693 806,155 898,287 1,014,195 1,497,145 2,096,003 2,418,465 4,491,435 6,288,009 10,480,015 and 31,440,045, with no remainder.

Since 31,440,045 cannot be divided by just 1 and 31,440,045, 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).