Q: Is 1,639,440 a Composite Number?

Why is 1,639,440 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 1,639,440 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 23 24 27 30 33 36 40 44 45 46 48 54 55 60 66 69 72 80 81 88 90 92 99 108 110 115 120 132 135 138 144 162 165 176 180 184 198 207 216 220 230 240 253 264 270 276 297 324 330 345 360 368 396 405 414 432 440 460 495 506 528 540 552 594 621 648 660 690 720 759 792 810 828 880 891 920 990 1,012 1,035 1,080 1,104 1,188 1,242 1,265 1,296 1,320 1,380 1,485 1,518 1,584 1,620 1,656 1,782 1,840 1,863 1,980 2,024 2,070 2,160 2,277 2,376 2,484 2,530 2,640 2,760 2,970 3,036 3,105 3,240 3,312 3,564 3,726 3,795 3,960 4,048 4,140 4,455 4,554 4,752 4,968 5,060 5,520 5,940 6,072 6,210 6,480 6,831 7,128 7,452 7,590 7,920 8,280 8,910 9,108 9,315 9,936 10,120 11,385 11,880 12,144 12,420 13,662 14,256 14,904 15,180 16,560 17,820 18,216 18,630 20,240 20,493 22,770 23,760 24,840 27,324 29,808 30,360 34,155 35,640 36,432 37,260 40,986 45,540 49,680 54,648 60,720 68,310 71,280 74,520 81,972 91,080 102,465 109,296 136,620 149,040 163,944 182,160 204,930 273,240 327,888 409,860 546,480 819,720 and 1,639,440, with no remainder.

Since 1,639,440 cannot be divided by just 1 and 1,639,440, 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).