A:
Positive:
1 x 6265013155 x 12530026311 x 5695466555 x 11390933743 x 8432053715 x 1686418173 x 7665515331 x 40865
Negative:
-1 x -626501315-5 x -125300263-11 x -56954665-55 x -11390933-743 x -843205-3715 x -168641-8173 x -76655-15331 x -40865
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 626,501,315, 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 | 626,501,315 | |
| -1 | -626,501,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 626,501,315.
Example:
1 x 626,501,315 = 626,501,315
and
-1 x -626,501,315 = 626,501,315
Notice both answers equal 626,501,315
With that explanation out of the way, let's continue. Next, we take the number 626,501,315 and divide it by 2:
626,501,315 ÷ 2 = 313,250,657.5
If the quotient is a whole number, then 2 and 313,250,657.5 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 | 626,501,315 | |
| -1 | -626,501,315 |
Now, we try dividing 626,501,315 by 3:
626,501,315 ÷ 3 = 208,833,771.6667
If the quotient is a whole number, then 3 and 208,833,771.6667 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 | 626,501,315 | |
| -1 | -626,501,315 |
Let's try dividing by 4:
626,501,315 ÷ 4 = 156,625,328.75
If the quotient is a whole number, then 4 and 156,625,328.75 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 | 626,501,315 | |
| -1 | 626,501,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 743 | 3,715 | 8,173 | 15,331 | 40,865 | 76,655 | 168,641 | 843,205 | 11,390,933 | 56,954,665 | 125,300,263 | 626,501,315 |
| -1 | -5 | -11 | -55 | -743 | -3,715 | -8,173 | -15,331 | -40,865 | -76,655 | -168,641 | -843,205 | -11,390,933 | -56,954,665 | -125,300,263 | -626,501,315 |
Here are some more numbers to try:
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