Q: Is 7,791,440 a Composite Number?

Why is 7,791,440 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 7,791,440 can be evenly divided by 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 289 337 340 578 674 680 1,156 1,348 1,360 1,445 1,685 2,312 2,696 2,890 3,370 4,624 5,392 5,729 5,780 6,740 11,458 11,560 13,480 22,916 23,120 26,960 28,645 45,832 57,290 91,664 97,393 114,580 194,786 229,160 389,572 458,320 486,965 779,144 973,930 1,558,288 1,947,860 3,895,720 and 7,791,440, with no remainder.

Since 7,791,440 cannot be divided by just 1 and 7,791,440, 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).