Q: Is 31,121,200 a Composite Number?

Why is 31,121,200 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 31,121,200 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 25 40 44 50 55 80 88 100 110 121 176 200 220 242 275 400 440 484 550 605 643 880 968 1,100 1,210 1,286 1,936 2,200 2,420 2,572 3,025 3,215 4,400 4,840 5,144 6,050 6,430 7,073 9,680 10,288 12,100 12,860 14,146 16,075 24,200 25,720 28,292 32,150 35,365 48,400 51,440 56,584 64,300 70,730 77,803 113,168 128,600 141,460 155,606 176,825 257,200 282,920 311,212 353,650 389,015 565,840 622,424 707,300 778,030 1,244,848 1,414,600 1,556,060 1,945,075 2,829,200 3,112,120 3,890,150 6,224,240 7,780,300 15,560,600 and 31,121,200, with no remainder.

Since 31,121,200 cannot be divided by just 1 and 31,121,200, 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).