Q: Is 21,459,072 a Composite Number?

Why is 21,459,072 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 21,459,072 can be evenly divided by 1 2 3 4 6 8 12 16 24 29 32 41 47 48 58 64 82 87 94 96 116 123 128 141 164 174 188 192 232 246 282 328 348 376 384 464 492 564 656 696 752 928 984 1,128 1,189 1,312 1,363 1,392 1,504 1,856 1,927 1,968 2,256 2,378 2,624 2,726 2,784 3,008 3,567 3,712 3,854 3,936 4,089 4,512 4,756 5,248 5,452 5,568 5,781 6,016 7,134 7,708 7,872 8,178 9,024 9,512 10,904 11,136 11,562 14,268 15,416 15,744 16,356 18,048 19,024 21,808 23,124 28,536 30,832 32,712 38,048 43,616 46,248 55,883 57,072 61,664 65,424 76,096 87,232 92,496 111,766 114,144 123,328 130,848 152,192 167,649 174,464 184,992 223,532 228,288 246,656 261,696 335,298 369,984 447,064 456,576 523,392 670,596 739,968 894,128 1,341,192 1,788,256 2,682,384 3,576,512 5,364,768 7,153,024 10,729,536 and 21,459,072, with no remainder.

Since 21,459,072 cannot be divided by just 1 and 21,459,072, 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).