A:
Positive:
1 x 17242600713 x 1326353919 x 9075053193 x 893399247 x 6980812509 x 687233617 x 476713667 x 47021
Negative:
-1 x -172426007-13 x -13263539-19 x -9075053-193 x -893399-247 x -698081-2509 x -68723-3617 x -47671-3667 x -47021
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 172,426,007, 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 | 172,426,007 | |
| -1 | -172,426,007 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 172,426,007.
Example:
1 x 172,426,007 = 172,426,007
and
-1 x -172,426,007 = 172,426,007
Notice both answers equal 172,426,007
With that explanation out of the way, let's continue. Next, we take the number 172,426,007 and divide it by 2:
172,426,007 ÷ 2 = 86,213,003.5
If the quotient is a whole number, then 2 and 86,213,003.5 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 | 172,426,007 | |
| -1 | -172,426,007 |
Now, we try dividing 172,426,007 by 3:
172,426,007 ÷ 3 = 57,475,335.6667
If the quotient is a whole number, then 3 and 57,475,335.6667 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 | 172,426,007 | |
| -1 | -172,426,007 |
Let's try dividing by 4:
172,426,007 ÷ 4 = 43,106,501.75
If the quotient is a whole number, then 4 and 43,106,501.75 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 | 172,426,007 | |
| -1 | 172,426,007 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 193 | 247 | 2,509 | 3,617 | 3,667 | 47,021 | 47,671 | 68,723 | 698,081 | 893,399 | 9,075,053 | 13,263,539 | 172,426,007 |
| -1 | -13 | -19 | -193 | -247 | -2,509 | -3,617 | -3,667 | -47,021 | -47,671 | -68,723 | -698,081 | -893,399 | -9,075,053 | -13,263,539 | -172,426,007 |
Here are some more numbers to try:
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