Q: Is 1,205,550 a Composite Number?

Why is 1,205,550 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 1,205,550 can be evenly divided by 1 2 3 5 6 9 10 15 18 19 25 27 30 38 45 47 50 54 57 75 90 94 95 114 135 141 150 171 190 225 235 270 282 285 342 423 450 470 475 513 570 675 705 846 855 893 950 1,026 1,175 1,269 1,350 1,410 1,425 1,710 1,786 2,115 2,350 2,538 2,565 2,679 2,850 3,525 4,230 4,275 4,465 5,130 5,358 6,345 7,050 8,037 8,550 8,930 10,575 12,690 12,825 13,395 16,074 21,150 22,325 24,111 25,650 26,790 31,725 40,185 44,650 48,222 63,450 66,975 80,370 120,555 133,950 200,925 241,110 401,850 602,775 and 1,205,550, with no remainder.

Since 1,205,550 cannot be divided by just 1 and 1,205,550, 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).