Q: Is 31,655,130 a Composite Number?

Why is 31,655,130 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 31,655,130 can be evenly divided by 1 2 3 5 6 10 13 15 23 26 30 39 46 65 69 78 115 130 138 195 230 299 345 390 598 690 897 1,495 1,794 2,990 3,529 4,485 7,058 8,970 10,587 17,645 21,174 35,290 45,877 52,935 81,167 91,754 105,870 137,631 162,334 229,385 243,501 275,262 405,835 458,770 487,002 688,155 811,670 1,055,171 1,217,505 1,376,310 2,110,342 2,435,010 3,165,513 5,275,855 6,331,026 10,551,710 15,827,565 and 31,655,130, with no remainder.

Since 31,655,130 cannot be divided by just 1 and 31,655,130, 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).