A:
Positive:
1 x 773693055 x 1547386113 x 595148565 x 1190297953 x 811851249 x 619454765 x 162376245 x 12389
Negative:
-1 x -77369305-5 x -15473861-13 x -5951485-65 x -1190297-953 x -81185-1249 x -61945-4765 x -16237-6245 x -12389
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 77,369,305, 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 | 77,369,305 | |
| -1 | -77,369,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,369,305.
Example:
1 x 77,369,305 = 77,369,305
and
-1 x -77,369,305 = 77,369,305
Notice both answers equal 77,369,305
With that explanation out of the way, let's continue. Next, we take the number 77,369,305 and divide it by 2:
77,369,305 ÷ 2 = 38,684,652.5
If the quotient is a whole number, then 2 and 38,684,652.5 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 | 77,369,305 | |
| -1 | -77,369,305 |
Now, we try dividing 77,369,305 by 3:
77,369,305 ÷ 3 = 25,789,768.3333
If the quotient is a whole number, then 3 and 25,789,768.3333 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 | 77,369,305 | |
| -1 | -77,369,305 |
Let's try dividing by 4:
77,369,305 ÷ 4 = 19,342,326.25
If the quotient is a whole number, then 4 and 19,342,326.25 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 | 77,369,305 | |
| -1 | 77,369,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 953 | 1,249 | 4,765 | 6,245 | 12,389 | 16,237 | 61,945 | 81,185 | 1,190,297 | 5,951,485 | 15,473,861 | 77,369,305 |
| -1 | -5 | -13 | -65 | -953 | -1,249 | -4,765 | -6,245 | -12,389 | -16,237 | -61,945 | -81,185 | -1,190,297 | -5,951,485 | -15,473,861 | -77,369,305 |
Here are some more numbers to try:
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