Q: Is 31,400,000 a Composite Number?

Why is 31,400,000 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 31,400,000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 157 160 200 250 314 320 400 500 625 628 785 800 1,000 1,250 1,256 1,570 1,600 2,000 2,500 2,512 3,125 3,140 3,925 4,000 5,000 5,024 6,250 6,280 7,850 8,000 10,000 10,048 12,500 12,560 15,700 19,625 20,000 25,000 25,120 31,400 39,250 40,000 50,000 50,240 62,800 78,500 98,125 100,000 125,600 157,000 196,250 200,000 251,200 314,000 392,500 490,625 628,000 785,000 981,250 1,256,000 1,570,000 1,962,500 3,140,000 3,925,000 6,280,000 7,850,000 15,700,000 and 31,400,000, with no remainder.

Since 31,400,000 cannot be divided by just 1 and 31,400,000, 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).