Q: Is 21,838,000 a Composite Number?

Why is 21,838,000 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 21,838,000 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 61 80 100 122 125 179 200 244 250 305 358 400 488 500 610 716 895 976 1,000 1,220 1,432 1,525 1,790 2,000 2,440 2,864 3,050 3,580 4,475 4,880 6,100 7,160 7,625 8,950 10,919 12,200 14,320 15,250 17,900 21,838 22,375 24,400 30,500 35,800 43,676 44,750 54,595 61,000 71,600 87,352 89,500 109,190 122,000 174,704 179,000 218,380 272,975 358,000 436,760 545,950 873,520 1,091,900 1,364,875 2,183,800 2,729,750 4,367,600 5,459,500 10,919,000 and 21,838,000, with no remainder.

Since 21,838,000 cannot be divided by just 1 and 21,838,000, 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).