Q: Is 1,577,576 a Composite Number?

Why is 1,577,576 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 1,577,576 can be evenly divided by 1 2 4 7 8 11 13 14 22 26 28 44 52 56 77 88 91 104 143 154 182 197 286 308 364 394 572 616 728 788 1,001 1,144 1,379 1,576 2,002 2,167 2,561 2,758 4,004 4,334 5,122 5,516 8,008 8,668 10,244 11,032 15,169 17,336 17,927 20,488 28,171 30,338 35,854 56,342 60,676 71,708 112,684 121,352 143,416 197,197 225,368 394,394 788,788 and 1,577,576, with no remainder.

Since 1,577,576 cannot be divided by just 1 and 1,577,576, 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).