Q: Is 1,687,680 a Composite Number?

Why is 1,687,680 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 1,687,680 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 96 120 128 144 160 180 192 240 288 293 320 360 384 480 576 586 640 720 879 960 1,152 1,172 1,440 1,465 1,758 1,920 2,344 2,637 2,880 2,930 3,516 4,395 4,688 5,274 5,760 5,860 7,032 8,790 9,376 10,548 11,720 13,185 14,064 17,580 18,752 21,096 23,440 26,370 28,128 35,160 37,504 42,192 46,880 52,740 56,256 70,320 84,384 93,760 105,480 112,512 140,640 168,768 187,520 210,960 281,280 337,536 421,920 562,560 843,840 and 1,687,680, with no remainder.

Since 1,687,680 cannot be divided by just 1 and 1,687,680, 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).