Q: Is 861,560 a Composite Number?

Why is 861,560 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 861,560 can be evenly divided by 1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 68 70 85 119 136 140 170 181 238 280 340 362 476 595 680 724 905 952 1,190 1,267 1,448 1,810 2,380 2,534 3,077 3,620 4,760 5,068 6,154 6,335 7,240 10,136 12,308 12,670 15,385 21,539 24,616 25,340 30,770 43,078 50,680 61,540 86,156 107,695 123,080 172,312 215,390 430,780 and 861,560, with no remainder.

Since 861,560 cannot be divided by just 1 and 861,560, 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).