A:
Positive:
1 x 71725997 x 102465729 x 24733189 x 80591203 x 35333397 x 18067623 x 115132581 x 2779
Negative:
-1 x -7172599-7 x -1024657-29 x -247331-89 x -80591-203 x -35333-397 x -18067-623 x -11513-2581 x -2779
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 7,172,599, 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 | 7,172,599 | |
| -1 | -7,172,599 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,172,599.
Example:
1 x 7,172,599 = 7,172,599
and
-1 x -7,172,599 = 7,172,599
Notice both answers equal 7,172,599
With that explanation out of the way, let's continue. Next, we take the number 7,172,599 and divide it by 2:
7,172,599 ÷ 2 = 3,586,299.5
If the quotient is a whole number, then 2 and 3,586,299.5 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 | 7,172,599 | |
| -1 | -7,172,599 |
Now, we try dividing 7,172,599 by 3:
7,172,599 ÷ 3 = 2,390,866.3333
If the quotient is a whole number, then 3 and 2,390,866.3333 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 | 7,172,599 | |
| -1 | -7,172,599 |
Let's try dividing by 4:
7,172,599 ÷ 4 = 1,793,149.75
If the quotient is a whole number, then 4 and 1,793,149.75 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 | 7,172,599 | |
| -1 | 7,172,599 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 89 | 203 | 397 | 623 | 2,581 | 2,779 | 11,513 | 18,067 | 35,333 | 80,591 | 247,331 | 1,024,657 | 7,172,599 |
| -1 | -7 | -29 | -89 | -203 | -397 | -623 | -2,581 | -2,779 | -11,513 | -18,067 | -35,333 | -80,591 | -247,331 | -1,024,657 | -7,172,599 |
Here are some more numbers to try:
Try the factor calculator