Q: Is 3,115,320 a Composite Number?

Why is 3,115,320 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 3,115,320 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1,560 1,997 3,994 5,991 7,988 9,985 11,982 15,976 19,970 23,964 25,961 29,955 39,940 47,928 51,922 59,910 77,883 79,880 103,844 119,820 129,805 155,766 207,688 239,640 259,610 311,532 389,415 519,220 623,064 778,830 1,038,440 1,557,660 and 3,115,320, with no remainder.

Since 3,115,320 cannot be divided by just 1 and 3,115,320, 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).