A:
Positive:
1 x 79487655 x 158975311 x 72261543 x 18485555 x 144523215 x 36971473 x 168052365 x 3361
Negative:
-1 x -7948765-5 x -1589753-11 x -722615-43 x -184855-55 x -144523-215 x -36971-473 x -16805-2365 x -3361
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 7,948,765, 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 | 7,948,765 | |
| -1 | -7,948,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,948,765.
Example:
1 x 7,948,765 = 7,948,765
and
-1 x -7,948,765 = 7,948,765
Notice both answers equal 7,948,765
With that explanation out of the way, let's continue. Next, we take the number 7,948,765 and divide it by 2:
7,948,765 ÷ 2 = 3,974,382.5
If the quotient is a whole number, then 2 and 3,974,382.5 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 | 7,948,765 | |
| -1 | -7,948,765 |
Now, we try dividing 7,948,765 by 3:
7,948,765 ÷ 3 = 2,649,588.3333
If the quotient is a whole number, then 3 and 2,649,588.3333 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 | 7,948,765 | |
| -1 | -7,948,765 |
Let's try dividing by 4:
7,948,765 ÷ 4 = 1,987,191.25
If the quotient is a whole number, then 4 and 1,987,191.25 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 | 7,948,765 | |
| -1 | 7,948,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 43 | 55 | 215 | 473 | 2,365 | 3,361 | 16,805 | 36,971 | 144,523 | 184,855 | 722,615 | 1,589,753 | 7,948,765 |
| -1 | -5 | -11 | -43 | -55 | -215 | -473 | -2,365 | -3,361 | -16,805 | -36,971 | -144,523 | -184,855 | -722,615 | -1,589,753 | -7,948,765 |
Here are some more numbers to try:
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