Q: Is 420,240 a Composite Number?

Why is 420,240 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 420,240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 103 120 136 170 204 206 240 255 272 309 340 408 412 510 515 618 680 816 824 1,020 1,030 1,236 1,360 1,545 1,648 1,751 2,040 2,060 2,472 3,090 3,502 4,080 4,120 4,944 5,253 6,180 7,004 8,240 8,755 10,506 12,360 14,008 17,510 21,012 24,720 26,265 28,016 35,020 42,024 52,530 70,040 84,048 105,060 140,080 210,120 and 420,240, with no remainder.

Since 420,240 cannot be divided by just 1 and 420,240, 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).