Q: Is 4,278,420 a Composite Number?

Why is 4,278,420 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 4,278,420 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 38 45 54 57 60 76 81 90 95 108 114 135 139 162 171 180 190 228 270 278 285 324 342 380 405 417 513 540 556 570 684 695 810 834 855 1,026 1,140 1,251 1,390 1,539 1,620 1,668 1,710 2,052 2,085 2,502 2,565 2,641 2,780 3,078 3,420 3,753 4,170 5,004 5,130 5,282 6,156 6,255 7,506 7,695 7,923 8,340 10,260 10,564 11,259 12,510 13,205 15,012 15,390 15,846 18,765 22,518 23,769 25,020 26,410 30,780 31,692 37,530 39,615 45,036 47,538 52,820 56,295 71,307 75,060 79,230 95,076 112,590 118,845 142,614 158,460 213,921 225,180 237,690 285,228 356,535 427,842 475,380 713,070 855,684 1,069,605 1,426,140 2,139,210 and 4,278,420, with no remainder.

Since 4,278,420 cannot be divided by just 1 and 4,278,420, 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).