Q: Is 259,840 a Composite Number?

Why is 259,840 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 259,840 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 29 32 35 40 56 58 64 70 80 112 116 128 140 145 160 203 224 232 256 280 290 320 406 448 464 560 580 640 812 896 928 1,015 1,120 1,160 1,280 1,624 1,792 1,856 2,030 2,240 2,320 3,248 3,712 4,060 4,480 4,640 6,496 7,424 8,120 8,960 9,280 12,992 16,240 18,560 25,984 32,480 37,120 51,968 64,960 129,920 and 259,840, with no remainder.

Since 259,840 cannot be divided by just 1 and 259,840, 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).