A:
Positive:
1 x 772754717 x 1103935313 x 594426761 x 126681191 x 849181427 x 180973793 x 974475551 x 13921
Negative:
-1 x -77275471-7 x -11039353-13 x -5944267-61 x -1266811-91 x -849181-427 x -180973-793 x -97447-5551 x -13921
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 77,275,471, 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 | 77,275,471 | |
| -1 | -77,275,471 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,275,471.
Example:
1 x 77,275,471 = 77,275,471
and
-1 x -77,275,471 = 77,275,471
Notice both answers equal 77,275,471
With that explanation out of the way, let's continue. Next, we take the number 77,275,471 and divide it by 2:
77,275,471 ÷ 2 = 38,637,735.5
If the quotient is a whole number, then 2 and 38,637,735.5 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 | 77,275,471 | |
| -1 | -77,275,471 |
Now, we try dividing 77,275,471 by 3:
77,275,471 ÷ 3 = 25,758,490.3333
If the quotient is a whole number, then 3 and 25,758,490.3333 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 | 77,275,471 | |
| -1 | -77,275,471 |
Let's try dividing by 4:
77,275,471 ÷ 4 = 19,318,867.75
If the quotient is a whole number, then 4 and 19,318,867.75 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 | 77,275,471 | |
| -1 | 77,275,471 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 61 | 91 | 427 | 793 | 5,551 | 13,921 | 97,447 | 180,973 | 849,181 | 1,266,811 | 5,944,267 | 11,039,353 | 77,275,471 |
| -1 | -7 | -13 | -61 | -91 | -427 | -793 | -5,551 | -13,921 | -97,447 | -180,973 | -849,181 | -1,266,811 | -5,944,267 | -11,039,353 | -77,275,471 |
Here are some more numbers to try:
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