Q: Is 11,555,440 a Composite Number?

Why is 11,555,440 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 11,555,440 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 40 41 52 65 80 82 104 130 164 205 208 260 271 328 410 520 533 542 656 820 1,040 1,066 1,084 1,355 1,640 2,132 2,168 2,665 2,710 3,280 3,523 4,264 4,336 5,330 5,420 7,046 8,528 10,660 10,840 11,111 14,092 17,615 21,320 21,680 22,222 28,184 35,230 42,640 44,444 55,555 56,368 70,460 88,888 111,110 140,920 144,443 177,776 222,220 281,840 288,886 444,440 577,772 722,215 888,880 1,155,544 1,444,430 2,311,088 2,888,860 5,777,720 and 11,555,440, with no remainder.

Since 11,555,440 cannot be divided by just 1 and 11,555,440, 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).