Q: Is 2,100,000 a Composite Number?

Why is 2,100,000 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 2,100,000 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 32 35 40 42 48 50 56 60 70 75 80 84 96 100 105 112 120 125 140 150 160 168 175 200 210 224 240 250 280 300 336 350 375 400 420 480 500 525 560 600 625 672 700 750 800 840 875 1,000 1,050 1,120 1,200 1,250 1,400 1,500 1,680 1,750 1,875 2,000 2,100 2,400 2,500 2,625 2,800 3,000 3,125 3,360 3,500 3,750 4,000 4,200 4,375 5,000 5,250 5,600 6,000 6,250 7,000 7,500 8,400 8,750 9,375 10,000 10,500 12,000 12,500 13,125 14,000 15,000 16,800 17,500 18,750 20,000 21,000 21,875 25,000 26,250 28,000 30,000 35,000 37,500 42,000 43,750 50,000 52,500 60,000 65,625 70,000 75,000 84,000 87,500 100,000 105,000 131,250 140,000 150,000 175,000 210,000 262,500 300,000 350,000 420,000 525,000 700,000 1,050,000 and 2,100,000, with no remainder.

Since 2,100,000 cannot be divided by just 1 and 2,100,000, 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).