Q: Is 1,200,420 a Composite Number?

Why is 1,200,420 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 1,200,420 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 19 20 26 27 30 36 38 39 45 52 54 57 60 65 76 78 81 90 95 108 114 117 130 135 156 162 171 180 190 195 228 234 243 247 260 270 285 324 342 351 380 390 405 468 486 494 513 540 570 585 684 702 741 780 810 855 972 988 1,026 1,053 1,140 1,170 1,215 1,235 1,404 1,482 1,539 1,620 1,710 1,755 2,052 2,106 2,223 2,340 2,430 2,470 2,565 2,964 3,078 3,159 3,420 3,510 3,705 4,212 4,446 4,617 4,860 4,940 5,130 5,265 6,156 6,318 6,669 7,020 7,410 7,695 8,892 9,234 10,260 10,530 11,115 12,636 13,338 14,820 15,390 15,795 18,468 20,007 21,060 22,230 23,085 26,676 30,780 31,590 33,345 40,014 44,460 46,170 60,021 63,180 66,690 80,028 92,340 100,035 120,042 133,380 200,070 240,084 300,105 400,140 600,210 and 1,200,420, with no remainder.

Since 1,200,420 cannot be divided by just 1 and 1,200,420, 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).