Q: Is 2,455,040 a Composite Number?

Why is 2,455,040 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 2,455,040 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 137 140 160 224 256 274 280 320 448 512 548 560 640 685 896 959 1,096 1,120 1,280 1,370 1,792 1,918 2,192 2,240 2,560 2,740 3,584 3,836 4,384 4,480 4,795 5,480 7,672 8,768 8,960 9,590 10,960 15,344 17,536 17,920 19,180 21,920 30,688 35,072 38,360 43,840 61,376 70,144 76,720 87,680 122,752 153,440 175,360 245,504 306,880 350,720 491,008 613,760 1,227,520 and 2,455,040, with no remainder.

Since 2,455,040 cannot be divided by just 1 and 2,455,040, 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).