A:
Positive:
1 x 756418255 x 151283657 x 1080597523 x 328877525 x 302567335 x 2161195115 x 657755161 x 469825175 x 432239575 x 131551805 x 939654025 x 18793
Negative:
-1 x -75641825-5 x -15128365-7 x -10805975-23 x -3288775-25 x -3025673-35 x -2161195-115 x -657755-161 x -469825-175 x -432239-575 x -131551-805 x -93965-4025 x -18793
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 75,641,825, 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 | 75,641,825 | |
| -1 | -75,641,825 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 75,641,825.
Example:
1 x 75,641,825 = 75,641,825
and
-1 x -75,641,825 = 75,641,825
Notice both answers equal 75,641,825
With that explanation out of the way, let's continue. Next, we take the number 75,641,825 and divide it by 2:
75,641,825 ÷ 2 = 37,820,912.5
If the quotient is a whole number, then 2 and 37,820,912.5 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 | 75,641,825 | |
| -1 | -75,641,825 |
Now, we try dividing 75,641,825 by 3:
75,641,825 ÷ 3 = 25,213,941.6667
If the quotient is a whole number, then 3 and 25,213,941.6667 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 | 75,641,825 | |
| -1 | -75,641,825 |
Let's try dividing by 4:
75,641,825 ÷ 4 = 18,910,456.25
If the quotient is a whole number, then 4 and 18,910,456.25 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 | 75,641,825 | |
| -1 | 75,641,825 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 25 | 35 | 115 | 161 | 175 | 575 | 805 | 4,025 | 18,793 | 93,965 | 131,551 | 432,239 | 469,825 | 657,755 | 2,161,195 | 3,025,673 | 3,288,775 | 10,805,975 | 15,128,365 | 75,641,825 |
| -1 | -5 | -7 | -23 | -25 | -35 | -115 | -161 | -175 | -575 | -805 | -4,025 | -18,793 | -93,965 | -131,551 | -432,239 | -469,825 | -657,755 | -2,161,195 | -3,025,673 | -3,288,775 | -10,805,975 | -15,128,365 | -75,641,825 |
Here are some more numbers to try:
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