Q: Is 15,991,872 a Composite Number?

Why is 15,991,872 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 15,991,872 can be evenly divided by 1 2 3 4 6 8 12 13 16 24 26 32 39 43 48 52 64 78 86 96 104 129 149 156 172 192 208 258 298 312 344 416 447 516 559 596 624 688 832 894 1,032 1,118 1,192 1,248 1,376 1,677 1,788 1,937 2,064 2,236 2,384 2,496 2,752 3,354 3,576 3,874 4,128 4,472 4,768 5,811 6,407 6,708 7,152 7,748 8,256 8,944 9,536 11,622 12,814 13,416 14,304 15,496 17,888 19,221 23,244 25,628 26,832 28,608 30,992 35,776 38,442 46,488 51,256 53,664 61,984 76,884 83,291 92,976 102,512 107,328 123,968 153,768 166,582 185,952 205,024 249,873 307,536 333,164 371,904 410,048 499,746 615,072 666,328 999,492 1,230,144 1,332,656 1,998,984 2,665,312 3,997,968 5,330,624 7,995,936 and 15,991,872, with no remainder.

Since 15,991,872 cannot be divided by just 1 and 15,991,872, 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).