Q: Is 28,079,940 a Composite Number?

Why is 28,079,940 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 28,079,940 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1,470 2,940 9,551 19,102 28,653 38,204 47,755 57,306 66,857 95,510 114,612 133,714 143,265 191,020 200,571 267,428 286,530 334,285 401,142 467,999 573,060 668,570 802,284 935,998 1,002,855 1,337,140 1,403,997 1,871,996 2,005,710 2,339,995 2,807,994 4,011,420 4,679,990 5,615,988 7,019,985 9,359,980 14,039,970 and 28,079,940, with no remainder.

Since 28,079,940 cannot be divided by just 1 and 28,079,940, 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).