A:
Positive:
1 x 79728355 x 159456713 x 61329523 x 34664565 x 122659115 x 69329299 x 266651495 x 5333
Negative:
-1 x -7972835-5 x -1594567-13 x -613295-23 x -346645-65 x -122659-115 x -69329-299 x -26665-1495 x -5333
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 7,972,835, 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 | 7,972,835 | |
| -1 | -7,972,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,972,835.
Example:
1 x 7,972,835 = 7,972,835
and
-1 x -7,972,835 = 7,972,835
Notice both answers equal 7,972,835
With that explanation out of the way, let's continue. Next, we take the number 7,972,835 and divide it by 2:
7,972,835 ÷ 2 = 3,986,417.5
If the quotient is a whole number, then 2 and 3,986,417.5 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 | 7,972,835 | |
| -1 | -7,972,835 |
Now, we try dividing 7,972,835 by 3:
7,972,835 ÷ 3 = 2,657,611.6667
If the quotient is a whole number, then 3 and 2,657,611.6667 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 | 7,972,835 | |
| -1 | -7,972,835 |
Let's try dividing by 4:
7,972,835 ÷ 4 = 1,993,208.75
If the quotient is a whole number, then 4 and 1,993,208.75 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 | 7,972,835 | |
| -1 | 7,972,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 5,333 | 26,665 | 69,329 | 122,659 | 346,645 | 613,295 | 1,594,567 | 7,972,835 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -5,333 | -26,665 | -69,329 | -122,659 | -346,645 | -613,295 | -1,594,567 | -7,972,835 |
Here are some more numbers to try:
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