A:
Positive:
1 x 7753665711 x 704878723 x 3371159137 x 565961253 x 3064691507 x 514512237 x 346613151 x 24607
Negative:
-1 x -77536657-11 x -7048787-23 x -3371159-137 x -565961-253 x -306469-1507 x -51451-2237 x -34661-3151 x -24607
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 77,536,657, 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 | 77,536,657 | |
| -1 | -77,536,657 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,536,657.
Example:
1 x 77,536,657 = 77,536,657
and
-1 x -77,536,657 = 77,536,657
Notice both answers equal 77,536,657
With that explanation out of the way, let's continue. Next, we take the number 77,536,657 and divide it by 2:
77,536,657 ÷ 2 = 38,768,328.5
If the quotient is a whole number, then 2 and 38,768,328.5 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 | 77,536,657 | |
| -1 | -77,536,657 |
Now, we try dividing 77,536,657 by 3:
77,536,657 ÷ 3 = 25,845,552.3333
If the quotient is a whole number, then 3 and 25,845,552.3333 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 | 77,536,657 | |
| -1 | -77,536,657 |
Let's try dividing by 4:
77,536,657 ÷ 4 = 19,384,164.25
If the quotient is a whole number, then 4 and 19,384,164.25 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 | 77,536,657 | |
| -1 | 77,536,657 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 137 | 253 | 1,507 | 2,237 | 3,151 | 24,607 | 34,661 | 51,451 | 306,469 | 565,961 | 3,371,159 | 7,048,787 | 77,536,657 |
| -1 | -11 | -23 | -137 | -253 | -1,507 | -2,237 | -3,151 | -24,607 | -34,661 | -51,451 | -306,469 | -565,961 | -3,371,159 | -7,048,787 | -77,536,657 |
Here are some more numbers to try:
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