Q: Is 1,661,660 a Composite Number?

Why is 1,661,660 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 1,661,660 can be evenly divided by 1 2 4 5 7 10 11 13 14 20 22 26 28 35 44 52 55 65 70 77 83 91 110 130 140 143 154 166 182 220 260 286 308 332 364 385 415 455 572 581 715 770 830 910 913 1,001 1,079 1,162 1,430 1,540 1,660 1,820 1,826 2,002 2,158 2,324 2,860 2,905 3,652 4,004 4,316 4,565 5,005 5,395 5,810 6,391 7,553 9,130 10,010 10,790 11,620 11,869 12,782 15,106 18,260 20,020 21,580 23,738 25,564 30,212 31,955 37,765 47,476 59,345 63,910 75,530 83,083 118,690 127,820 151,060 166,166 237,380 332,332 415,415 830,830 and 1,661,660, with no remainder.

Since 1,661,660 cannot be divided by just 1 and 1,661,660, 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).