Q: Is 138,240 a Composite Number?

Why is 138,240 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 138,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 432 480 512 540 576 640 720 768 864 960 1,024 1,080 1,152 1,280 1,440 1,536 1,728 1,920 2,160 2,304 2,560 2,880 3,072 3,456 3,840 4,320 4,608 5,120 5,760 6,912 7,680 8,640 9,216 11,520 13,824 15,360 17,280 23,040 27,648 34,560 46,080 69,120 and 138,240, with no remainder.

Since 138,240 cannot be divided by just 1 and 138,240, 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).