A:
Positive:
1 x 718767655 x 1437535317 x 422804585 x 845609311 x 2311151555 x 462232719 x 264355287 x 13595
Negative:
-1 x -71876765-5 x -14375353-17 x -4228045-85 x -845609-311 x -231115-1555 x -46223-2719 x -26435-5287 x -13595
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 71,876,765, 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 | 71,876,765 | |
| -1 | -71,876,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,876,765.
Example:
1 x 71,876,765 = 71,876,765
and
-1 x -71,876,765 = 71,876,765
Notice both answers equal 71,876,765
With that explanation out of the way, let's continue. Next, we take the number 71,876,765 and divide it by 2:
71,876,765 ÷ 2 = 35,938,382.5
If the quotient is a whole number, then 2 and 35,938,382.5 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 | 71,876,765 | |
| -1 | -71,876,765 |
Now, we try dividing 71,876,765 by 3:
71,876,765 ÷ 3 = 23,958,921.6667
If the quotient is a whole number, then 3 and 23,958,921.6667 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 | 71,876,765 | |
| -1 | -71,876,765 |
Let's try dividing by 4:
71,876,765 ÷ 4 = 17,969,191.25
If the quotient is a whole number, then 4 and 17,969,191.25 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 | 71,876,765 | |
| -1 | 71,876,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 311 | 1,555 | 2,719 | 5,287 | 13,595 | 26,435 | 46,223 | 231,115 | 845,609 | 4,228,045 | 14,375,353 | 71,876,765 |
| -1 | -5 | -17 | -85 | -311 | -1,555 | -2,719 | -5,287 | -13,595 | -26,435 | -46,223 | -231,115 | -845,609 | -4,228,045 | -14,375,353 | -71,876,765 |
Here are some more numbers to try:
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