A:
Positive:
1 x 3106407055 x 6212814189 x 3490345445 x 698069787 x 394715887 x 3502153935 x 789434435 x 70043
Negative:
-1 x -310640705-5 x -62128141-89 x -3490345-445 x -698069-787 x -394715-887 x -350215-3935 x -78943-4435 x -70043
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 310,640,705, 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 | 310,640,705 | |
| -1 | -310,640,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 310,640,705.
Example:
1 x 310,640,705 = 310,640,705
and
-1 x -310,640,705 = 310,640,705
Notice both answers equal 310,640,705
With that explanation out of the way, let's continue. Next, we take the number 310,640,705 and divide it by 2:
310,640,705 ÷ 2 = 155,320,352.5
If the quotient is a whole number, then 2 and 155,320,352.5 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 | 310,640,705 | |
| -1 | -310,640,705 |
Now, we try dividing 310,640,705 by 3:
310,640,705 ÷ 3 = 103,546,901.6667
If the quotient is a whole number, then 3 and 103,546,901.6667 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 | 310,640,705 | |
| -1 | -310,640,705 |
Let's try dividing by 4:
310,640,705 ÷ 4 = 77,660,176.25
If the quotient is a whole number, then 4 and 77,660,176.25 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 | 310,640,705 | |
| -1 | 310,640,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 89 | 445 | 787 | 887 | 3,935 | 4,435 | 70,043 | 78,943 | 350,215 | 394,715 | 698,069 | 3,490,345 | 62,128,141 | 310,640,705 |
| -1 | -5 | -89 | -445 | -787 | -887 | -3,935 | -4,435 | -70,043 | -78,943 | -350,215 | -394,715 | -698,069 | -3,490,345 | -62,128,141 | -310,640,705 |
Here are some more numbers to try:
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