A:
Positive:
1 x 3823582113 x 294121723 x 166242741 x 932581299 x 127879533 x 71737943 x 405473119 x 12259
Negative:
-1 x -38235821-13 x -2941217-23 x -1662427-41 x -932581-299 x -127879-533 x -71737-943 x -40547-3119 x -12259
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 38,235,821, 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 | 38,235,821 | |
| -1 | -38,235,821 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,235,821.
Example:
1 x 38,235,821 = 38,235,821
and
-1 x -38,235,821 = 38,235,821
Notice both answers equal 38,235,821
With that explanation out of the way, let's continue. Next, we take the number 38,235,821 and divide it by 2:
38,235,821 ÷ 2 = 19,117,910.5
If the quotient is a whole number, then 2 and 19,117,910.5 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 | 38,235,821 | |
| -1 | -38,235,821 |
Now, we try dividing 38,235,821 by 3:
38,235,821 ÷ 3 = 12,745,273.6667
If the quotient is a whole number, then 3 and 12,745,273.6667 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 | 38,235,821 | |
| -1 | -38,235,821 |
Let's try dividing by 4:
38,235,821 ÷ 4 = 9,558,955.25
If the quotient is a whole number, then 4 and 9,558,955.25 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 | 38,235,821 | |
| -1 | 38,235,821 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 41 | 299 | 533 | 943 | 3,119 | 12,259 | 40,547 | 71,737 | 127,879 | 932,581 | 1,662,427 | 2,941,217 | 38,235,821 |
| -1 | -13 | -23 | -41 | -299 | -533 | -943 | -3,119 | -12,259 | -40,547 | -71,737 | -127,879 | -932,581 | -1,662,427 | -2,941,217 | -38,235,821 |
Here are some more numbers to try:
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