A:
Positive:
1 x 713071155 x 1426142311 x 648246543 x 165830555 x 1296493121 x 589315215 x 331661473 x 150755605 x 1178632365 x 301512741 x 260155203 x 13705
Negative:
-1 x -71307115-5 x -14261423-11 x -6482465-43 x -1658305-55 x -1296493-121 x -589315-215 x -331661-473 x -150755-605 x -117863-2365 x -30151-2741 x -26015-5203 x -13705
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 71,307,115, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 71,307,115 | |
| -1 | -71,307,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,307,115.
Example:
1 x 71,307,115 = 71,307,115
and
-1 x -71,307,115 = 71,307,115
Notice both answers equal 71,307,115
With that explanation out of the way, let's continue. Next, we take the number 71,307,115 and divide it by 2:
71,307,115 ÷ 2 = 35,653,557.5
If the quotient is a whole number, then 2 and 35,653,557.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 71,307,115 | |
| -1 | -71,307,115 |
Now, we try dividing 71,307,115 by 3:
71,307,115 ÷ 3 = 23,769,038.3333
If the quotient is a whole number, then 3 and 23,769,038.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 71,307,115 | |
| -1 | -71,307,115 |
Let's try dividing by 4:
71,307,115 ÷ 4 = 17,826,778.75
If the quotient is a whole number, then 4 and 17,826,778.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 71,307,115 | |
| -1 | 71,307,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 43 | 55 | 121 | 215 | 473 | 605 | 2,365 | 2,741 | 5,203 | 13,705 | 26,015 | 30,151 | 117,863 | 150,755 | 331,661 | 589,315 | 1,296,493 | 1,658,305 | 6,482,465 | 14,261,423 | 71,307,115 |
| -1 | -5 | -11 | -43 | -55 | -121 | -215 | -473 | -605 | -2,365 | -2,741 | -5,203 | -13,705 | -26,015 | -30,151 | -117,863 | -150,755 | -331,661 | -589,315 | -1,296,493 | -1,658,305 | -6,482,465 | -14,261,423 | -71,307,115 |
Here are some more numbers to try:
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