Q: Is 1,242,864 a Composite Number?

Why is 1,242,864 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 1,242,864 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 81 84 108 112 126 137 144 162 168 189 216 252 274 324 336 378 411 432 504 548 567 648 756 822 959 1,008 1,096 1,134 1,233 1,296 1,512 1,644 1,918 2,192 2,268 2,466 2,877 3,024 3,288 3,699 3,836 4,536 4,932 5,754 6,576 7,398 7,672 8,631 9,072 9,864 11,097 11,508 14,796 15,344 17,262 19,728 22,194 23,016 25,893 29,592 34,524 44,388 46,032 51,786 59,184 69,048 77,679 88,776 103,572 138,096 155,358 177,552 207,144 310,716 414,288 621,432 and 1,242,864, with no remainder.

Since 1,242,864 cannot be divided by just 1 and 1,242,864, 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).