Q: Is 1,245,456 a Composite Number?

Why is 1,245,456 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 1,245,456 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 27 31 36 48 54 62 72 81 93 108 124 144 162 186 216 248 279 324 372 432 496 558 648 744 837 961 1,116 1,296 1,488 1,674 1,922 2,232 2,511 2,883 3,348 3,844 4,464 5,022 5,766 6,696 7,688 8,649 10,044 11,532 13,392 15,376 17,298 20,088 23,064 25,947 34,596 40,176 46,128 51,894 69,192 77,841 103,788 138,384 155,682 207,576 311,364 415,152 622,728 and 1,245,456, with no remainder.

Since 1,245,456 cannot be divided by just 1 and 1,245,456, 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).