A:
Positive:
1 x 610701255 x 1221402525 x 2442805125 x 488561613 x 99625797 x 766253065 x 199253985 x 15325
Negative:
-1 x -61070125-5 x -12214025-25 x -2442805-125 x -488561-613 x -99625-797 x -76625-3065 x -19925-3985 x -15325
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 61,070,125, 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 | 61,070,125 | |
| -1 | -61,070,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,070,125.
Example:
1 x 61,070,125 = 61,070,125
and
-1 x -61,070,125 = 61,070,125
Notice both answers equal 61,070,125
With that explanation out of the way, let's continue. Next, we take the number 61,070,125 and divide it by 2:
61,070,125 ÷ 2 = 30,535,062.5
If the quotient is a whole number, then 2 and 30,535,062.5 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 | 61,070,125 | |
| -1 | -61,070,125 |
Now, we try dividing 61,070,125 by 3:
61,070,125 ÷ 3 = 20,356,708.3333
If the quotient is a whole number, then 3 and 20,356,708.3333 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 | 61,070,125 | |
| -1 | -61,070,125 |
Let's try dividing by 4:
61,070,125 ÷ 4 = 15,267,531.25
If the quotient is a whole number, then 4 and 15,267,531.25 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 | 61,070,125 | |
| -1 | 61,070,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 613 | 797 | 3,065 | 3,985 | 15,325 | 19,925 | 76,625 | 99,625 | 488,561 | 2,442,805 | 12,214,025 | 61,070,125 |
| -1 | -5 | -25 | -125 | -613 | -797 | -3,065 | -3,985 | -15,325 | -19,925 | -76,625 | -99,625 | -488,561 | -2,442,805 | -12,214,025 | -61,070,125 |
Here are some more numbers to try:
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