Q: Is 2,455,440 a Composite Number?

Why is 2,455,440 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 2,455,440 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 787 1,040 1,560 1,574 2,361 3,120 3,148 3,935 4,722 6,296 7,870 9,444 10,231 11,805 12,592 15,740 18,888 20,462 23,610 30,693 31,480 37,776 40,924 47,220 51,155 61,386 62,960 81,848 94,440 102,310 122,772 153,465 163,696 188,880 204,620 245,544 306,930 409,240 491,088 613,860 818,480 1,227,720 and 2,455,440, with no remainder.

Since 2,455,440 cannot be divided by just 1 and 2,455,440, 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).