Q: Is 30,721,080 a Composite Number?

Why is 30,721,080 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 30,721,080 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 47 52 60 65 78 94 104 120 130 141 156 188 195 235 260 282 312 376 390 419 470 520 564 611 705 780 838 940 1,128 1,222 1,257 1,410 1,560 1,676 1,833 1,880 2,095 2,444 2,514 2,820 3,055 3,352 3,666 4,190 4,888 5,028 5,447 5,640 6,110 6,285 7,332 8,380 9,165 10,056 10,894 12,220 12,570 14,664 16,341 16,760 18,330 19,693 21,788 24,440 25,140 27,235 32,682 36,660 39,386 43,576 50,280 54,470 59,079 65,364 73,320 78,772 81,705 98,465 108,940 118,158 130,728 157,544 163,410 196,930 217,880 236,316 256,009 295,395 326,820 393,860 472,632 512,018 590,790 653,640 768,027 787,720 1,024,036 1,181,580 1,280,045 1,536,054 2,048,072 2,363,160 2,560,090 3,072,108 3,840,135 5,120,180 6,144,216 7,680,270 10,240,360 15,360,540 and 30,721,080, with no remainder.

Since 30,721,080 cannot be divided by just 1 and 30,721,080, 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).