A:
Positive:
1 x 380197097 x 543138713 x 292459353 x 71735391 x 417799371 x 102479689 x 551814823 x 7883
Negative:
-1 x -38019709-7 x -5431387-13 x -2924593-53 x -717353-91 x -417799-371 x -102479-689 x -55181-4823 x -7883
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 38,019,709, 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 | 38,019,709 | |
| -1 | -38,019,709 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,019,709.
Example:
1 x 38,019,709 = 38,019,709
and
-1 x -38,019,709 = 38,019,709
Notice both answers equal 38,019,709
With that explanation out of the way, let's continue. Next, we take the number 38,019,709 and divide it by 2:
38,019,709 ÷ 2 = 19,009,854.5
If the quotient is a whole number, then 2 and 19,009,854.5 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 | 38,019,709 | |
| -1 | -38,019,709 |
Now, we try dividing 38,019,709 by 3:
38,019,709 ÷ 3 = 12,673,236.3333
If the quotient is a whole number, then 3 and 12,673,236.3333 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 | 38,019,709 | |
| -1 | -38,019,709 |
Let's try dividing by 4:
38,019,709 ÷ 4 = 9,504,927.25
If the quotient is a whole number, then 4 and 9,504,927.25 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 | 38,019,709 | |
| -1 | 38,019,709 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 53 | 91 | 371 | 689 | 4,823 | 7,883 | 55,181 | 102,479 | 417,799 | 717,353 | 2,924,593 | 5,431,387 | 38,019,709 |
| -1 | -7 | -13 | -53 | -91 | -371 | -689 | -4,823 | -7,883 | -55,181 | -102,479 | -417,799 | -717,353 | -2,924,593 | -5,431,387 | -38,019,709 |
Here are some more numbers to try:
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