A:
Positive:
1 x 7163052055 x 1432610417 x 10232931511 x 6511865535 x 2046586355 x 1302373177 x 9302665385 x 1860533
Negative:
-1 x -716305205-5 x -143261041-7 x -102329315-11 x -65118655-35 x -20465863-55 x -13023731-77 x -9302665-385 x -1860533
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 716,305,205, 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 | 716,305,205 | |
| -1 | -716,305,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 716,305,205.
Example:
1 x 716,305,205 = 716,305,205
and
-1 x -716,305,205 = 716,305,205
Notice both answers equal 716,305,205
With that explanation out of the way, let's continue. Next, we take the number 716,305,205 and divide it by 2:
716,305,205 ÷ 2 = 358,152,602.5
If the quotient is a whole number, then 2 and 358,152,602.5 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 | 716,305,205 | |
| -1 | -716,305,205 |
Now, we try dividing 716,305,205 by 3:
716,305,205 ÷ 3 = 238,768,401.6667
If the quotient is a whole number, then 3 and 238,768,401.6667 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 | 716,305,205 | |
| -1 | -716,305,205 |
Let's try dividing by 4:
716,305,205 ÷ 4 = 179,076,301.25
If the quotient is a whole number, then 4 and 179,076,301.25 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 | 716,305,205 | |
| -1 | 716,305,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 1,860,533 | 9,302,665 | 13,023,731 | 20,465,863 | 65,118,655 | 102,329,315 | 143,261,041 | 716,305,205 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -1,860,533 | -9,302,665 | -13,023,731 | -20,465,863 | -65,118,655 | -102,329,315 | -143,261,041 | -716,305,205 |
Here are some more numbers to try:
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