Q: Is 1,563,408 a Composite Number?

Why is 1,563,408 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 1,563,408 can be evenly divided by 1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 33 36 42 44 47 48 54 56 63 66 72 77 84 88 94 99 108 112 126 132 141 144 154 168 176 188 189 198 216 231 252 264 282 297 308 329 336 376 378 396 423 432 462 504 517 528 564 594 616 658 693 752 756 792 846 924 987 1,008 1,034 1,128 1,188 1,232 1,269 1,316 1,386 1,512 1,551 1,584 1,692 1,848 1,974 2,068 2,079 2,256 2,376 2,538 2,632 2,772 2,961 3,024 3,102 3,384 3,619 3,696 3,948 4,136 4,158 4,653 4,752 5,076 5,264 5,544 5,922 6,204 6,768 7,238 7,896 8,272 8,316 8,883 9,306 10,152 10,857 11,088 11,844 12,408 13,959 14,476 15,792 16,632 17,766 18,612 20,304 21,714 23,688 24,816 27,918 28,952 32,571 33,264 35,532 37,224 43,428 47,376 55,836 57,904 65,142 71,064 74,448 86,856 97,713 111,672 130,284 142,128 173,712 195,426 223,344 260,568 390,852 521,136 781,704 and 1,563,408, with no remainder.

Since 1,563,408 cannot be divided by just 1 and 1,563,408, 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).