Q: Is 1,640,240 a Composite Number?

Why is 1,640,240 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 1,640,240 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 29 35 40 56 58 70 80 101 112 116 140 145 202 203 232 280 290 404 406 464 505 560 580 707 808 812 1,010 1,015 1,160 1,414 1,616 1,624 2,020 2,030 2,320 2,828 2,929 3,248 3,535 4,040 4,060 5,656 5,858 7,070 8,080 8,120 11,312 11,716 14,140 14,645 16,240 20,503 23,432 28,280 29,290 41,006 46,864 56,560 58,580 82,012 102,515 117,160 164,024 205,030 234,320 328,048 410,060 820,120 and 1,640,240, with no remainder.

Since 1,640,240 cannot be divided by just 1 and 1,640,240, 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).