A:
Positive:
1 x 612021355 x 1224042719 x 322116541 x 149273595 x 644233205 x 298547361 x 169535779 x 78565827 x 740051805 x 339073895 x 157134135 x 14801
Negative:
-1 x -61202135-5 x -12240427-19 x -3221165-41 x -1492735-95 x -644233-205 x -298547-361 x -169535-779 x -78565-827 x -74005-1805 x -33907-3895 x -15713-4135 x -14801
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 61,202,135, 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 | 61,202,135 | |
| -1 | -61,202,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,202,135.
Example:
1 x 61,202,135 = 61,202,135
and
-1 x -61,202,135 = 61,202,135
Notice both answers equal 61,202,135
With that explanation out of the way, let's continue. Next, we take the number 61,202,135 and divide it by 2:
61,202,135 ÷ 2 = 30,601,067.5
If the quotient is a whole number, then 2 and 30,601,067.5 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 | 61,202,135 | |
| -1 | -61,202,135 |
Now, we try dividing 61,202,135 by 3:
61,202,135 ÷ 3 = 20,400,711.6667
If the quotient is a whole number, then 3 and 20,400,711.6667 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 | 61,202,135 | |
| -1 | -61,202,135 |
Let's try dividing by 4:
61,202,135 ÷ 4 = 15,300,533.75
If the quotient is a whole number, then 4 and 15,300,533.75 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 | 61,202,135 | |
| -1 | 61,202,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 41 | 95 | 205 | 361 | 779 | 827 | 1,805 | 3,895 | 4,135 | 14,801 | 15,713 | 33,907 | 74,005 | 78,565 | 169,535 | 298,547 | 644,233 | 1,492,735 | 3,221,165 | 12,240,427 | 61,202,135 |
| -1 | -5 | -19 | -41 | -95 | -205 | -361 | -779 | -827 | -1,805 | -3,895 | -4,135 | -14,801 | -15,713 | -33,907 | -74,005 | -78,565 | -169,535 | -298,547 | -644,233 | -1,492,735 | -3,221,165 | -12,240,427 | -61,202,135 |
Here are some more numbers to try:
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