A:
Positive:
1 x 7715621277 x 11022316119 x 40608533107 x 7210861133 x 5801219749 x 10301232033 x 37951914231 x 54217
Negative:
-1 x -771562127-7 x -110223161-19 x -40608533-107 x -7210861-133 x -5801219-749 x -1030123-2033 x -379519-14231 x -54217
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 771,562,127, 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 | 771,562,127 | |
| -1 | -771,562,127 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 771,562,127.
Example:
1 x 771,562,127 = 771,562,127
and
-1 x -771,562,127 = 771,562,127
Notice both answers equal 771,562,127
With that explanation out of the way, let's continue. Next, we take the number 771,562,127 and divide it by 2:
771,562,127 ÷ 2 = 385,781,063.5
If the quotient is a whole number, then 2 and 385,781,063.5 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 | 771,562,127 | |
| -1 | -771,562,127 |
Now, we try dividing 771,562,127 by 3:
771,562,127 ÷ 3 = 257,187,375.6667
If the quotient is a whole number, then 3 and 257,187,375.6667 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 | 771,562,127 | |
| -1 | -771,562,127 |
Let's try dividing by 4:
771,562,127 ÷ 4 = 192,890,531.75
If the quotient is a whole number, then 4 and 192,890,531.75 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 | 771,562,127 | |
| -1 | 771,562,127 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 107 | 133 | 749 | 2,033 | 14,231 | 54,217 | 379,519 | 1,030,123 | 5,801,219 | 7,210,861 | 40,608,533 | 110,223,161 | 771,562,127 |
| -1 | -7 | -19 | -107 | -133 | -749 | -2,033 | -14,231 | -54,217 | -379,519 | -1,030,123 | -5,801,219 | -7,210,861 | -40,608,533 | -110,223,161 | -771,562,127 |
Here are some more numbers to try:
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