Q: Is 555,840 a Composite Number?

Why is 555,840 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 555,840 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 193 240 288 320 360 386 480 576 579 720 772 960 965 1,158 1,440 1,544 1,737 1,930 2,316 2,880 2,895 3,088 3,474 3,860 4,632 5,790 6,176 6,948 7,720 8,685 9,264 11,580 12,352 13,896 15,440 17,370 18,528 23,160 27,792 30,880 34,740 37,056 46,320 55,584 61,760 69,480 92,640 111,168 138,960 185,280 277,920 and 555,840, with no remainder.

Since 555,840 cannot be divided by just 1 and 555,840, 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).