Q: Is 1,281,420 a Composite Number?

Why is 1,281,420 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 1,281,420 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 81 84 90 105 108 113 126 135 140 162 180 189 210 226 252 270 315 324 339 378 405 420 452 540 565 567 630 678 756 791 810 945 1,017 1,130 1,134 1,260 1,356 1,582 1,620 1,695 1,890 2,034 2,260 2,268 2,373 2,835 3,051 3,164 3,390 3,780 3,955 4,068 4,746 5,085 5,670 6,102 6,780 7,119 7,910 9,153 9,492 10,170 11,340 11,865 12,204 14,238 15,255 15,820 18,306 20,340 21,357 23,730 28,476 30,510 35,595 36,612 42,714 45,765 47,460 61,020 64,071 71,190 85,428 91,530 106,785 128,142 142,380 183,060 213,570 256,284 320,355 427,140 640,710 and 1,281,420, with no remainder.

Since 1,281,420 cannot be divided by just 1 and 1,281,420, 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).