Q: Is 7,681,620 a Composite Number?

Why is 7,681,620 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 7,681,620 can be evenly divided by 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 289 340 443 510 578 867 886 1,020 1,156 1,329 1,445 1,734 1,772 2,215 2,658 2,890 3,468 4,335 4,430 5,316 5,780 6,645 7,531 8,670 8,860 13,290 15,062 17,340 22,593 26,580 30,124 37,655 45,186 75,310 90,372 112,965 128,027 150,620 225,930 256,054 384,081 451,860 512,108 640,135 768,162 1,280,270 1,536,324 1,920,405 2,560,540 3,840,810 and 7,681,620, with no remainder.

Since 7,681,620 cannot be divided by just 1 and 7,681,620, 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).