Q: Is 7,808,780 a Composite Number?

Why is 7,808,780 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 7,808,780 can be evenly divided by 1 2 4 5 7 10 14 17 20 28 34 35 68 70 85 119 140 170 193 238 289 340 386 476 578 595 772 965 1,156 1,190 1,351 1,445 1,930 2,023 2,380 2,702 2,890 3,281 3,860 4,046 5,404 5,780 6,562 6,755 8,092 10,115 13,124 13,510 16,405 20,230 22,967 27,020 32,810 40,460 45,934 55,777 65,620 91,868 111,554 114,835 223,108 229,670 278,885 390,439 459,340 557,770 780,878 1,115,540 1,561,756 1,952,195 3,904,390 and 7,808,780, with no remainder.

Since 7,808,780 cannot be divided by just 1 and 7,808,780, 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).