Q: Is 1,687,920 a Composite Number?

Why is 1,687,920 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 1,687,920 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 541 624 780 1,040 1,082 1,560 1,623 2,164 2,705 3,120 3,246 4,328 5,410 6,492 7,033 8,115 8,656 10,820 12,984 14,066 16,230 21,099 21,640 25,968 28,132 32,460 35,165 42,198 43,280 56,264 64,920 70,330 84,396 105,495 112,528 129,840 140,660 168,792 210,990 281,320 337,584 421,980 562,640 843,960 and 1,687,920, with no remainder.

Since 1,687,920 cannot be divided by just 1 and 1,687,920, 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).