Q: Is 2,191,000 a Composite Number?

Why is 2,191,000 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 2,191,000 can be evenly divided by 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 313 350 500 626 700 875 1,000 1,252 1,400 1,565 1,750 2,191 2,504 3,130 3,500 4,382 6,260 7,000 7,825 8,764 10,955 12,520 15,650 17,528 21,910 31,300 39,125 43,820 54,775 62,600 78,250 87,640 109,550 156,500 219,100 273,875 313,000 438,200 547,750 1,095,500 and 2,191,000, with no remainder.

Since 2,191,000 cannot be divided by just 1 and 2,191,000, 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).