Q: Is 512,640 a Composite Number?

Why is 512,640 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 512,640 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 89 90 96 120 128 144 160 178 180 192 240 267 288 320 356 360 384 445 480 534 576 640 712 720 801 890 960 1,068 1,152 1,335 1,424 1,440 1,602 1,780 1,920 2,136 2,670 2,848 2,880 3,204 3,560 4,005 4,272 5,340 5,696 5,760 6,408 7,120 8,010 8,544 10,680 11,392 12,816 14,240 16,020 17,088 21,360 25,632 28,480 32,040 34,176 42,720 51,264 56,960 64,080 85,440 102,528 128,160 170,880 256,320 and 512,640, with no remainder.

Since 512,640 cannot be divided by just 1 and 512,640, 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).