Q: Is 1,388,520 a Composite Number?

Why is 1,388,520 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 1,388,520 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 18 19 20 21 24 28 29 30 35 36 38 40 42 45 56 57 58 60 63 70 72 76 84 87 90 95 105 114 116 120 126 133 140 145 152 168 171 174 180 190 203 210 228 232 252 261 266 280 285 290 315 342 348 360 380 399 406 420 435 456 504 522 532 551 570 580 609 630 665 684 696 760 798 812 840 855 870 1,015 1,044 1,064 1,102 1,140 1,160 1,197 1,218 1,260 1,305 1,330 1,368 1,596 1,624 1,653 1,710 1,740 1,827 1,995 2,030 2,088 2,204 2,280 2,394 2,436 2,520 2,610 2,660 2,755 3,045 3,192 3,306 3,420 3,480 3,654 3,857 3,990 4,060 4,408 4,788 4,872 4,959 5,220 5,320 5,510 5,985 6,090 6,612 6,840 7,308 7,714 7,980 8,120 8,265 9,135 9,576 9,918 10,440 11,020 11,571 11,970 12,180 13,224 14,616 15,428 15,960 16,530 18,270 19,285 19,836 22,040 23,142 23,940 24,360 24,795 30,856 33,060 34,713 36,540 38,570 39,672 46,284 47,880 49,590 57,855 66,120 69,426 73,080 77,140 92,568 99,180 115,710 138,852 154,280 173,565 198,360 231,420 277,704 347,130 462,840 694,260 and 1,388,520, with no remainder.

Since 1,388,520 cannot be divided by just 1 and 1,388,520, 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).