Q: Is 19,776,800 a Composite Number?

Why is 19,776,800 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 19,776,800 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 59 80 100 118 160 200 236 295 400 419 472 590 800 838 944 1,180 1,475 1,676 1,888 2,095 2,360 2,950 3,352 4,190 4,720 5,900 6,704 8,380 9,440 10,475 11,800 13,408 16,760 20,950 23,600 24,721 33,520 41,900 47,200 49,442 67,040 83,800 98,884 123,605 167,600 197,768 247,210 335,200 395,536 494,420 618,025 791,072 988,840 1,236,050 1,977,680 2,472,100 3,955,360 4,944,200 9,888,400 and 19,776,800, with no remainder.

Since 19,776,800 cannot be divided by just 1 and 19,776,800, 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).