Q: Is 6,445,872 a Composite Number?

Why is 6,445,872 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 6,445,872 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 27 36 43 48 54 72 86 108 129 144 172 216 258 344 347 387 432 516 688 694 774 1,032 1,041 1,161 1,388 1,548 2,064 2,082 2,322 2,776 3,096 3,123 4,164 4,644 5,552 6,192 6,246 8,328 9,288 9,369 12,492 14,921 16,656 18,576 18,738 24,984 29,842 37,476 44,763 49,968 59,684 74,952 89,526 119,368 134,289 149,904 179,052 238,736 268,578 358,104 402,867 537,156 716,208 805,734 1,074,312 1,611,468 2,148,624 3,222,936 and 6,445,872, with no remainder.

Since 6,445,872 cannot be divided by just 1 and 6,445,872, 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).