A:
Positive:
1 x 775603555 x 1551207129 x 2674495145 x 534899157 x 494015785 x 988033407 x 227654553 x 17035
Negative:
-1 x -77560355-5 x -15512071-29 x -2674495-145 x -534899-157 x -494015-785 x -98803-3407 x -22765-4553 x -17035
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 77,560,355, 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 | 77,560,355 | |
| -1 | -77,560,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,560,355.
Example:
1 x 77,560,355 = 77,560,355
and
-1 x -77,560,355 = 77,560,355
Notice both answers equal 77,560,355
With that explanation out of the way, let's continue. Next, we take the number 77,560,355 and divide it by 2:
77,560,355 ÷ 2 = 38,780,177.5
If the quotient is a whole number, then 2 and 38,780,177.5 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 | 77,560,355 | |
| -1 | -77,560,355 |
Now, we try dividing 77,560,355 by 3:
77,560,355 ÷ 3 = 25,853,451.6667
If the quotient is a whole number, then 3 and 25,853,451.6667 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 | 77,560,355 | |
| -1 | -77,560,355 |
Let's try dividing by 4:
77,560,355 ÷ 4 = 19,390,088.75
If the quotient is a whole number, then 4 and 19,390,088.75 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 | 77,560,355 | |
| -1 | 77,560,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 157 | 785 | 3,407 | 4,553 | 17,035 | 22,765 | 98,803 | 494,015 | 534,899 | 2,674,495 | 15,512,071 | 77,560,355 |
| -1 | -5 | -29 | -145 | -157 | -785 | -3,407 | -4,553 | -17,035 | -22,765 | -98,803 | -494,015 | -534,899 | -2,674,495 | -15,512,071 | -77,560,355 |
Here are some more numbers to try:
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