Q: Is 18,658,000 a Composite Number?

Why is 18,658,000 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 18,658,000 can be evenly divided by 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 125 152 190 200 250 304 380 400 475 491 500 760 950 982 1,000 1,520 1,900 1,964 2,000 2,375 2,455 3,800 3,928 4,750 4,910 7,600 7,856 9,329 9,500 9,820 12,275 18,658 19,000 19,640 24,550 37,316 38,000 39,280 46,645 49,100 61,375 74,632 93,290 98,200 122,750 149,264 186,580 196,400 233,225 245,500 373,160 466,450 491,000 746,320 932,900 982,000 1,166,125 1,865,800 2,332,250 3,731,600 4,664,500 9,329,000 and 18,658,000, with no remainder.

Since 18,658,000 cannot be divided by just 1 and 18,658,000, 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).