Q: Is 542,640 a Composite Number?

Why is 542,640 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 542,640 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 17 19 20 21 24 28 30 34 35 38 40 42 48 51 56 57 60 68 70 76 80 84 85 95 102 105 112 114 119 120 133 136 140 152 168 170 190 204 210 228 238 240 255 266 272 280 285 304 323 336 340 357 380 399 408 420 456 476 510 532 560 570 595 646 665 680 714 760 798 816 840 912 952 969 1,020 1,064 1,140 1,190 1,292 1,330 1,360 1,428 1,520 1,596 1,615 1,680 1,785 1,904 1,938 1,995 2,040 2,128 2,261 2,280 2,380 2,584 2,660 2,856 3,192 3,230 3,570 3,876 3,990 4,080 4,522 4,560 4,760 4,845 5,168 5,320 5,712 6,384 6,460 6,783 7,140 7,752 7,980 9,044 9,520 9,690 10,640 11,305 12,920 13,566 14,280 15,504 15,960 18,088 19,380 22,610 25,840 27,132 28,560 31,920 33,915 36,176 38,760 45,220 54,264 67,830 77,520 90,440 108,528 135,660 180,880 271,320 and 542,640, with no remainder.

Since 542,640 cannot be divided by just 1 and 542,640, 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).