Q: Is 345,000 a Composite Number?

Why is 345,000 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 345,000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 23 24 25 30 40 46 50 60 69 75 92 100 115 120 125 138 150 184 200 230 250 276 300 345 375 460 500 552 575 600 625 690 750 920 1,000 1,150 1,250 1,380 1,500 1,725 1,875 2,300 2,500 2,760 2,875 3,000 3,450 3,750 4,600 5,000 5,750 6,900 7,500 8,625 11,500 13,800 14,375 15,000 17,250 23,000 28,750 34,500 43,125 57,500 69,000 86,250 115,000 172,500 and 345,000, with no remainder.

Since 345,000 cannot be divided by just 1 and 345,000, 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).