A:
Positive:
1 x 3875763111 x 352342159 x 65690961 x 63537189 x 435479121 x 320311649 x 59719671 x 57761979 x 395893599 x 107695251 x 73815429 x 7139
Negative:
-1 x -38757631-11 x -3523421-59 x -656909-61 x -635371-89 x -435479-121 x -320311-649 x -59719-671 x -57761-979 x -39589-3599 x -10769-5251 x -7381-5429 x -7139
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 38,757,631, 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 | 38,757,631 | |
| -1 | -38,757,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,757,631.
Example:
1 x 38,757,631 = 38,757,631
and
-1 x -38,757,631 = 38,757,631
Notice both answers equal 38,757,631
With that explanation out of the way, let's continue. Next, we take the number 38,757,631 and divide it by 2:
38,757,631 ÷ 2 = 19,378,815.5
If the quotient is a whole number, then 2 and 19,378,815.5 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 | 38,757,631 | |
| -1 | -38,757,631 |
Now, we try dividing 38,757,631 by 3:
38,757,631 ÷ 3 = 12,919,210.3333
If the quotient is a whole number, then 3 and 12,919,210.3333 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 | 38,757,631 | |
| -1 | -38,757,631 |
Let's try dividing by 4:
38,757,631 ÷ 4 = 9,689,407.75
If the quotient is a whole number, then 4 and 9,689,407.75 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 | 38,757,631 | |
| -1 | 38,757,631 |
If you did it right, you will end up with this table:
| 1 | 11 | 59 | 61 | 89 | 121 | 649 | 671 | 979 | 3,599 | 5,251 | 5,429 | 7,139 | 7,381 | 10,769 | 39,589 | 57,761 | 59,719 | 320,311 | 435,479 | 635,371 | 656,909 | 3,523,421 | 38,757,631 |
| -1 | -11 | -59 | -61 | -89 | -121 | -649 | -671 | -979 | -3,599 | -5,251 | -5,429 | -7,139 | -7,381 | -10,769 | -39,589 | -57,761 | -59,719 | -320,311 | -435,479 | -635,371 | -656,909 | -3,523,421 | -38,757,631 |
Here are some more numbers to try:
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