A:
Positive:
1 x 911877955 x 1823755937 x 2464535185 x 492907359 x 2540051373 x 664151795 x 508016865 x 13283
Negative:
-1 x -91187795-5 x -18237559-37 x -2464535-185 x -492907-359 x -254005-1373 x -66415-1795 x -50801-6865 x -13283
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 91,187,795, 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 | 91,187,795 | |
| -1 | -91,187,795 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 91,187,795.
Example:
1 x 91,187,795 = 91,187,795
and
-1 x -91,187,795 = 91,187,795
Notice both answers equal 91,187,795
With that explanation out of the way, let's continue. Next, we take the number 91,187,795 and divide it by 2:
91,187,795 ÷ 2 = 45,593,897.5
If the quotient is a whole number, then 2 and 45,593,897.5 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 | 91,187,795 | |
| -1 | -91,187,795 |
Now, we try dividing 91,187,795 by 3:
91,187,795 ÷ 3 = 30,395,931.6667
If the quotient is a whole number, then 3 and 30,395,931.6667 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 | 91,187,795 | |
| -1 | -91,187,795 |
Let's try dividing by 4:
91,187,795 ÷ 4 = 22,796,948.75
If the quotient is a whole number, then 4 and 22,796,948.75 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 | 91,187,795 | |
| -1 | 91,187,795 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 359 | 1,373 | 1,795 | 6,865 | 13,283 | 50,801 | 66,415 | 254,005 | 492,907 | 2,464,535 | 18,237,559 | 91,187,795 |
| -1 | -5 | -37 | -185 | -359 | -1,373 | -1,795 | -6,865 | -13,283 | -50,801 | -66,415 | -254,005 | -492,907 | -2,464,535 | -18,237,559 | -91,187,795 |
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