Q: Is 2,215,728 a Composite Number?

Why is 2,215,728 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 2,215,728 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 23 24 27 36 46 48 54 69 72 92 108 138 144 184 207 216 223 276 368 414 432 446 552 621 669 828 892 1,104 1,242 1,338 1,656 1,784 2,007 2,484 2,676 3,312 3,568 4,014 4,968 5,129 5,352 6,021 8,028 9,936 10,258 10,704 12,042 15,387 16,056 20,516 24,084 30,774 32,112 41,032 46,161 48,168 61,548 82,064 92,322 96,336 123,096 138,483 184,644 246,192 276,966 369,288 553,932 738,576 1,107,864 and 2,215,728, with no remainder.

Since 2,215,728 cannot be divided by just 1 and 2,215,728, 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).