A:
Positive:
1 x 14263602111 x 1296691119 x 7507159209 x 682469251 x 5682712719 x 524592761 x 516614769 x 29909
Negative:
-1 x -142636021-11 x -12966911-19 x -7507159-209 x -682469-251 x -568271-2719 x -52459-2761 x -51661-4769 x -29909
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 142,636,021, 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 | 142,636,021 | |
| -1 | -142,636,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 142,636,021.
Example:
1 x 142,636,021 = 142,636,021
and
-1 x -142,636,021 = 142,636,021
Notice both answers equal 142,636,021
With that explanation out of the way, let's continue. Next, we take the number 142,636,021 and divide it by 2:
142,636,021 ÷ 2 = 71,318,010.5
If the quotient is a whole number, then 2 and 71,318,010.5 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 | 142,636,021 | |
| -1 | -142,636,021 |
Now, we try dividing 142,636,021 by 3:
142,636,021 ÷ 3 = 47,545,340.3333
If the quotient is a whole number, then 3 and 47,545,340.3333 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 | 142,636,021 | |
| -1 | -142,636,021 |
Let's try dividing by 4:
142,636,021 ÷ 4 = 35,659,005.25
If the quotient is a whole number, then 4 and 35,659,005.25 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 | 142,636,021 | |
| -1 | 142,636,021 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 251 | 2,719 | 2,761 | 4,769 | 29,909 | 51,661 | 52,459 | 568,271 | 682,469 | 7,507,159 | 12,966,911 | 142,636,021 |
| -1 | -11 | -19 | -209 | -251 | -2,719 | -2,761 | -4,769 | -29,909 | -51,661 | -52,459 | -568,271 | -682,469 | -7,507,159 | -12,966,911 | -142,636,021 |
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