A:
Positive:
1 x 790455617 x 1129222329 x 2725709203 x 389387367 x 2153831061 x 745012569 x 307697427 x 10643
Negative:
-1 x -79045561-7 x -11292223-29 x -2725709-203 x -389387-367 x -215383-1061 x -74501-2569 x -30769-7427 x -10643
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 79,045,561, 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 | 79,045,561 | |
| -1 | -79,045,561 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 79,045,561.
Example:
1 x 79,045,561 = 79,045,561
and
-1 x -79,045,561 = 79,045,561
Notice both answers equal 79,045,561
With that explanation out of the way, let's continue. Next, we take the number 79,045,561 and divide it by 2:
79,045,561 ÷ 2 = 39,522,780.5
If the quotient is a whole number, then 2 and 39,522,780.5 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 | 79,045,561 | |
| -1 | -79,045,561 |
Now, we try dividing 79,045,561 by 3:
79,045,561 ÷ 3 = 26,348,520.3333
If the quotient is a whole number, then 3 and 26,348,520.3333 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 | 79,045,561 | |
| -1 | -79,045,561 |
Let's try dividing by 4:
79,045,561 ÷ 4 = 19,761,390.25
If the quotient is a whole number, then 4 and 19,761,390.25 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 | 79,045,561 | |
| -1 | 79,045,561 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 203 | 367 | 1,061 | 2,569 | 7,427 | 10,643 | 30,769 | 74,501 | 215,383 | 389,387 | 2,725,709 | 11,292,223 | 79,045,561 |
| -1 | -7 | -29 | -203 | -367 | -1,061 | -2,569 | -7,427 | -10,643 | -30,769 | -74,501 | -215,383 | -389,387 | -2,725,709 | -11,292,223 | -79,045,561 |
Here are some more numbers to try:
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