A:
Positive:
1 x 395887455 x 79177497 x 565553535 x 1131107311 x 1272951555 x 254592177 x 181853637 x 10885
Negative:
-1 x -39588745-5 x -7917749-7 x -5655535-35 x -1131107-311 x -127295-1555 x -25459-2177 x -18185-3637 x -10885
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 39,588,745, 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 | 39,588,745 | |
| -1 | -39,588,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,588,745.
Example:
1 x 39,588,745 = 39,588,745
and
-1 x -39,588,745 = 39,588,745
Notice both answers equal 39,588,745
With that explanation out of the way, let's continue. Next, we take the number 39,588,745 and divide it by 2:
39,588,745 ÷ 2 = 19,794,372.5
If the quotient is a whole number, then 2 and 19,794,372.5 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 | 39,588,745 | |
| -1 | -39,588,745 |
Now, we try dividing 39,588,745 by 3:
39,588,745 ÷ 3 = 13,196,248.3333
If the quotient is a whole number, then 3 and 13,196,248.3333 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 | 39,588,745 | |
| -1 | -39,588,745 |
Let's try dividing by 4:
39,588,745 ÷ 4 = 9,897,186.25
If the quotient is a whole number, then 4 and 9,897,186.25 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 | 39,588,745 | |
| -1 | 39,588,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 311 | 1,555 | 2,177 | 3,637 | 10,885 | 18,185 | 25,459 | 127,295 | 1,131,107 | 5,655,535 | 7,917,749 | 39,588,745 |
| -1 | -5 | -7 | -35 | -311 | -1,555 | -2,177 | -3,637 | -10,885 | -18,185 | -25,459 | -127,295 | -1,131,107 | -5,655,535 | -7,917,749 | -39,588,745 |
Here are some more numbers to try:
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