Q: Is 2,045,440 a Composite Number?

Why is 2,045,440 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 2,045,440 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 47 64 68 80 85 94 128 136 160 170 188 235 256 272 320 340 376 470 512 544 640 680 752 799 940 1,088 1,280 1,360 1,504 1,598 1,880 2,176 2,560 2,720 3,008 3,196 3,760 3,995 4,352 5,440 6,016 6,392 7,520 7,990 8,704 10,880 12,032 12,784 15,040 15,980 21,760 24,064 25,568 30,080 31,960 43,520 51,136 60,160 63,920 102,272 120,320 127,840 204,544 255,680 409,088 511,360 1,022,720 and 2,045,440, with no remainder.

Since 2,045,440 cannot be divided by just 1 and 2,045,440, 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).