A:
Positive:
1 x 77112664717 x 4536039119 x 4058561341 x 18807967323 x 2387389697 x 1106351779 x 98989313243 x 58229
Negative:
-1 x -771126647-17 x -45360391-19 x -40585613-41 x -18807967-323 x -2387389-697 x -1106351-779 x -989893-13243 x -58229
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 771,126,647, 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 | 771,126,647 | |
| -1 | -771,126,647 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 771,126,647.
Example:
1 x 771,126,647 = 771,126,647
and
-1 x -771,126,647 = 771,126,647
Notice both answers equal 771,126,647
With that explanation out of the way, let's continue. Next, we take the number 771,126,647 and divide it by 2:
771,126,647 ÷ 2 = 385,563,323.5
If the quotient is a whole number, then 2 and 385,563,323.5 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 | 771,126,647 | |
| -1 | -771,126,647 |
Now, we try dividing 771,126,647 by 3:
771,126,647 ÷ 3 = 257,042,215.6667
If the quotient is a whole number, then 3 and 257,042,215.6667 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 | 771,126,647 | |
| -1 | -771,126,647 |
Let's try dividing by 4:
771,126,647 ÷ 4 = 192,781,661.75
If the quotient is a whole number, then 4 and 192,781,661.75 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 | 771,126,647 | |
| -1 | 771,126,647 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 41 | 323 | 697 | 779 | 13,243 | 58,229 | 989,893 | 1,106,351 | 2,387,389 | 18,807,967 | 40,585,613 | 45,360,391 | 771,126,647 |
| -1 | -17 | -19 | -41 | -323 | -697 | -779 | -13,243 | -58,229 | -989,893 | -1,106,351 | -2,387,389 | -18,807,967 | -40,585,613 | -45,360,391 | -771,126,647 |
Here are some more numbers to try:
Try the factor calculator