Q: Is 1,721,040 a Composite Number?

Why is 1,721,040 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 1,721,040 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 71 80 101 120 142 202 213 240 284 303 355 404 426 505 568 606 710 808 852 1,010 1,065 1,136 1,212 1,420 1,515 1,616 1,704 2,020 2,130 2,424 2,840 3,030 3,408 4,040 4,260 4,848 5,680 6,060 7,171 8,080 8,520 12,120 14,342 17,040 21,513 24,240 28,684 35,855 43,026 57,368 71,710 86,052 107,565 114,736 143,420 172,104 215,130 286,840 344,208 430,260 573,680 860,520 and 1,721,040, with no remainder.

Since 1,721,040 cannot be divided by just 1 and 1,721,040, 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).