Q: Is 1,680,720 a Composite Number?

Why is 1,680,720 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 1,680,720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 47 48 60 80 94 120 141 149 188 235 240 282 298 376 447 470 564 596 705 745 752 894 940 1,128 1,192 1,410 1,490 1,788 1,880 2,235 2,256 2,384 2,820 2,980 3,576 3,760 4,470 5,640 5,960 7,003 7,152 8,940 11,280 11,920 14,006 17,880 21,009 28,012 35,015 35,760 42,018 56,024 70,030 84,036 105,045 112,048 140,060 168,072 210,090 280,120 336,144 420,180 560,240 840,360 and 1,680,720, with no remainder.

Since 1,680,720 cannot be divided by just 1 and 1,680,720, 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).