Q: Is 787,440 a Composite Number?

Why is 787,440 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 787,440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 193 204 240 255 272 340 386 408 510 579 680 772 816 965 1,020 1,158 1,360 1,544 1,930 2,040 2,316 2,895 3,088 3,281 3,860 4,080 4,632 5,790 6,562 7,720 9,264 9,843 11,580 13,124 15,440 16,405 19,686 23,160 26,248 32,810 39,372 46,320 49,215 52,496 65,620 78,744 98,430 131,240 157,488 196,860 262,480 393,720 and 787,440, with no remainder.

Since 787,440 cannot be divided by just 1 and 787,440, 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).