Q: Is 28,715,520 a Composite Number?

Why is 28,715,520 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 28,715,520 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1,280 1,536 1,920 2,560 3,739 3,840 7,478 7,680 11,217 14,956 18,695 22,434 29,912 37,390 44,868 56,085 59,824 74,780 89,736 112,170 119,648 149,560 179,472 224,340 239,296 299,120 358,944 448,680 478,592 598,240 717,888 897,360 957,184 1,196,480 1,435,776 1,794,720 1,914,368 2,392,960 2,871,552 3,589,440 4,785,920 5,743,104 7,178,880 9,571,840 14,357,760 and 28,715,520, with no remainder.

Since 28,715,520 cannot be divided by just 1 and 28,715,520, 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).