A:
Positive:
1 x 79361155 x 158722311 x 72146555 x 144293313 x 25355461 x 172151565 x 50712305 x 3443
Negative:
-1 x -7936115-5 x -1587223-11 x -721465-55 x -144293-313 x -25355-461 x -17215-1565 x -5071-2305 x -3443
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 7,936,115, 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 | 7,936,115 | |
| -1 | -7,936,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,936,115.
Example:
1 x 7,936,115 = 7,936,115
and
-1 x -7,936,115 = 7,936,115
Notice both answers equal 7,936,115
With that explanation out of the way, let's continue. Next, we take the number 7,936,115 and divide it by 2:
7,936,115 ÷ 2 = 3,968,057.5
If the quotient is a whole number, then 2 and 3,968,057.5 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 | 7,936,115 | |
| -1 | -7,936,115 |
Now, we try dividing 7,936,115 by 3:
7,936,115 ÷ 3 = 2,645,371.6667
If the quotient is a whole number, then 3 and 2,645,371.6667 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 | 7,936,115 | |
| -1 | -7,936,115 |
Let's try dividing by 4:
7,936,115 ÷ 4 = 1,984,028.75
If the quotient is a whole number, then 4 and 1,984,028.75 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 | 7,936,115 | |
| -1 | 7,936,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 313 | 461 | 1,565 | 2,305 | 3,443 | 5,071 | 17,215 | 25,355 | 144,293 | 721,465 | 1,587,223 | 7,936,115 |
| -1 | -5 | -11 | -55 | -313 | -461 | -1,565 | -2,305 | -3,443 | -5,071 | -17,215 | -25,355 | -144,293 | -721,465 | -1,587,223 | -7,936,115 |
Here are some more numbers to try:
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