Q: Is 180,000 a Composite Number?

Why is 180,000 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 180,000 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 125 144 150 160 180 200 225 240 250 288 300 360 375 400 450 480 500 600 625 720 750 800 900 1,000 1,125 1,200 1,250 1,440 1,500 1,800 1,875 2,000 2,250 2,400 2,500 3,000 3,600 3,750 4,000 4,500 5,000 5,625 6,000 7,200 7,500 9,000 10,000 11,250 12,000 15,000 18,000 20,000 22,500 30,000 36,000 45,000 60,000 90,000 and 180,000, with no remainder.

Since 180,000 cannot be divided by just 1 and 180,000, 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).