Q: Is 1,577,880 a Composite Number?

Why is 1,577,880 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 1,577,880 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 270 324 360 405 487 540 648 810 974 1,080 1,461 1,620 1,948 2,435 2,922 3,240 3,896 4,383 4,870 5,844 7,305 8,766 9,740 11,688 13,149 14,610 17,532 19,480 21,915 26,298 29,220 35,064 39,447 43,830 52,596 58,440 65,745 78,894 87,660 105,192 131,490 157,788 175,320 197,235 262,980 315,576 394,470 525,960 788,940 and 1,577,880, with no remainder.

Since 1,577,880 cannot be divided by just 1 and 1,577,880, 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).