Q: Is 31,121,316 a Composite Number?

Why is 31,121,316 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 31,121,316 can be evenly divided by 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 173 228 263 342 346 519 526 684 692 789 1,038 1,052 1,557 1,578 2,076 2,367 3,114 3,156 3,287 4,734 4,997 6,228 6,574 9,468 9,861 9,994 13,148 14,991 19,722 19,988 29,583 29,982 39,444 44,973 45,499 59,166 59,964 89,946 90,998 118,332 136,497 179,892 181,996 272,994 409,491 545,988 818,982 864,481 1,637,964 1,728,962 2,593,443 3,457,924 5,186,886 7,780,329 10,373,772 15,560,658 and 31,121,316, with no remainder.

Since 31,121,316 cannot be divided by just 1 and 31,121,316, 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).