A:
Positive:
1 x 7762756313 x 597135153 x 146467161 x 1272583689 x 112667793 x 978911847 x 420293233 x 24011
Negative:
-1 x -77627563-13 x -5971351-53 x -1464671-61 x -1272583-689 x -112667-793 x -97891-1847 x -42029-3233 x -24011
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 77,627,563, 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 | 77,627,563 | |
| -1 | -77,627,563 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,627,563.
Example:
1 x 77,627,563 = 77,627,563
and
-1 x -77,627,563 = 77,627,563
Notice both answers equal 77,627,563
With that explanation out of the way, let's continue. Next, we take the number 77,627,563 and divide it by 2:
77,627,563 ÷ 2 = 38,813,781.5
If the quotient is a whole number, then 2 and 38,813,781.5 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 | 77,627,563 | |
| -1 | -77,627,563 |
Now, we try dividing 77,627,563 by 3:
77,627,563 ÷ 3 = 25,875,854.3333
If the quotient is a whole number, then 3 and 25,875,854.3333 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 | 77,627,563 | |
| -1 | -77,627,563 |
Let's try dividing by 4:
77,627,563 ÷ 4 = 19,406,890.75
If the quotient is a whole number, then 4 and 19,406,890.75 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 | 77,627,563 | |
| -1 | 77,627,563 |
If you did it right, you will end up with this table:
| 1 | 13 | 53 | 61 | 689 | 793 | 1,847 | 3,233 | 24,011 | 42,029 | 97,891 | 112,667 | 1,272,583 | 1,464,671 | 5,971,351 | 77,627,563 |
| -1 | -13 | -53 | -61 | -689 | -793 | -1,847 | -3,233 | -24,011 | -42,029 | -97,891 | -112,667 | -1,272,583 | -1,464,671 | -5,971,351 | -77,627,563 |
Here are some more numbers to try:
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