Q: Is 1,564,840 a Composite Number?

Why is 1,564,840 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 1,564,840 can be evenly divided by 1 2 4 5 8 10 19 20 29 38 40 58 71 76 95 116 142 145 152 190 232 284 290 355 380 551 568 580 710 760 1,102 1,160 1,349 1,420 2,059 2,204 2,698 2,755 2,840 4,118 4,408 5,396 5,510 6,745 8,236 10,295 10,792 11,020 13,490 16,472 20,590 22,040 26,980 39,121 41,180 53,960 78,242 82,360 156,484 195,605 312,968 391,210 782,420 and 1,564,840, with no remainder.

Since 1,564,840 cannot be divided by just 1 and 1,564,840, 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).