A:
Positive:
1 x 207541755 x 415083513 x 159647519 x 109232525 x 83016765 x 31929595 x 218465247 x 84025325 x 63859475 x 436931235 x 168053361 x 6175
Negative:
-1 x -20754175-5 x -4150835-13 x -1596475-19 x -1092325-25 x -830167-65 x -319295-95 x -218465-247 x -84025-325 x -63859-475 x -43693-1235 x -16805-3361 x -6175
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 20,754,175, 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 | 20,754,175 | |
| -1 | -20,754,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,754,175.
Example:
1 x 20,754,175 = 20,754,175
and
-1 x -20,754,175 = 20,754,175
Notice both answers equal 20,754,175
With that explanation out of the way, let's continue. Next, we take the number 20,754,175 and divide it by 2:
20,754,175 ÷ 2 = 10,377,087.5
If the quotient is a whole number, then 2 and 10,377,087.5 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 | 20,754,175 | |
| -1 | -20,754,175 |
Now, we try dividing 20,754,175 by 3:
20,754,175 ÷ 3 = 6,918,058.3333
If the quotient is a whole number, then 3 and 6,918,058.3333 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 | 20,754,175 | |
| -1 | -20,754,175 |
Let's try dividing by 4:
20,754,175 ÷ 4 = 5,188,543.75
If the quotient is a whole number, then 4 and 5,188,543.75 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 | 20,754,175 | |
| -1 | 20,754,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 25 | 65 | 95 | 247 | 325 | 475 | 1,235 | 3,361 | 6,175 | 16,805 | 43,693 | 63,859 | 84,025 | 218,465 | 319,295 | 830,167 | 1,092,325 | 1,596,475 | 4,150,835 | 20,754,175 |
| -1 | -5 | -13 | -19 | -25 | -65 | -95 | -247 | -325 | -475 | -1,235 | -3,361 | -6,175 | -16,805 | -43,693 | -63,859 | -84,025 | -218,465 | -319,295 | -830,167 | -1,092,325 | -1,596,475 | -4,150,835 | -20,754,175 |
Here are some more numbers to try:
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