Q: Is 23,121,315 a Composite Number?

Why is 23,121,315 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 23,121,315 can be evenly divided by 1 3 5 7 9 15 21 27 35 43 45 63 105 129 135 189 215 301 315 387 569 645 903 945 1,161 1,505 1,707 1,935 2,709 2,845 3,983 4,515 5,121 5,805 8,127 8,535 11,949 13,545 15,363 19,915 24,467 25,605 35,847 40,635 59,745 73,401 76,815 107,541 122,335 171,269 179,235 220,203 367,005 513,807 537,705 660,609 856,345 1,101,015 1,541,421 2,569,035 3,303,045 4,624,263 7,707,105 and 23,121,315, with no remainder.

Since 23,121,315 cannot be divided by just 1 and 23,121,315, 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).