Q: Is 31,207,120 a Composite Number?

Why is 31,207,120 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 31,207,120 can be evenly divided by 1 2 4 5 7 8 10 14 16 19 20 28 35 38 40 49 56 70 76 80 95 98 112 133 140 152 190 196 245 266 280 304 380 392 419 490 532 560 665 760 784 838 931 980 1,064 1,330 1,520 1,676 1,862 1,960 2,095 2,128 2,660 2,933 3,352 3,724 3,920 4,190 4,655 5,320 5,866 6,704 7,448 7,961 8,380 9,310 10,640 11,732 14,665 14,896 15,922 16,760 18,620 20,531 23,464 29,330 31,844 33,520 37,240 39,805 41,062 46,928 55,727 58,660 63,688 74,480 79,610 82,124 102,655 111,454 117,320 127,376 159,220 164,248 205,310 222,908 234,640 278,635 318,440 328,496 390,089 410,620 445,816 557,270 636,880 780,178 821,240 891,632 1,114,540 1,560,356 1,642,480 1,950,445 2,229,080 3,120,712 3,900,890 4,458,160 6,241,424 7,801,780 15,603,560 and 31,207,120, with no remainder.

Since 31,207,120 cannot be divided by just 1 and 31,207,120, 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).