Q: Is 31,717,161 a Composite Number?

Why is 31,717,161 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 31,717,161 can be evenly divided by 1 3 7 9 21 23 49 53 59 63 69 147 159 161 177 207 371 413 441 477 483 531 1,113 1,127 1,219 1,239 1,357 1,449 2,597 2,891 3,127 3,339 3,381 3,657 3,717 4,071 7,791 8,533 8,673 9,381 9,499 10,143 10,971 12,213 21,889 23,373 25,599 26,019 28,143 28,497 59,731 65,667 66,493 71,921 76,797 85,491 153,223 179,193 197,001 199,479 215,763 459,669 503,447 537,579 598,437 647,289 1,379,007 1,510,341 3,524,129 4,531,023 10,572,387 and 31,717,161, with no remainder.

Since 31,717,161 cannot be divided by just 1 and 31,717,161, 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).