Q: Is 1,243,440 a Composite Number?

Why is 1,243,440 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 1,243,440 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 44 45 48 55 60 66 72 80 88 90 99 110 120 132 144 157 165 176 180 198 220 240 264 314 330 360 396 440 471 495 528 628 660 720 785 792 880 942 990 1,256 1,320 1,413 1,570 1,584 1,727 1,884 1,980 2,355 2,512 2,640 2,826 3,140 3,454 3,768 3,960 4,710 5,181 5,652 6,280 6,908 7,065 7,536 7,920 8,635 9,420 10,362 11,304 12,560 13,816 14,130 15,543 17,270 18,840 20,724 22,608 25,905 27,632 28,260 31,086 34,540 37,680 41,448 51,810 56,520 62,172 69,080 77,715 82,896 103,620 113,040 124,344 138,160 155,430 207,240 248,688 310,860 414,480 621,720 and 1,243,440, with no remainder.

Since 1,243,440 cannot be divided by just 1 and 1,243,440, 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).