A:
Positive:
1 x 439408137 x 627725989 x 493717251 x 175063281 x 156373623 x 705311757 x 250091967 x 22339
Negative:
-1 x -43940813-7 x -6277259-89 x -493717-251 x -175063-281 x -156373-623 x -70531-1757 x -25009-1967 x -22339
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 43,940,813, 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 | 43,940,813 | |
| -1 | -43,940,813 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 43,940,813.
Example:
1 x 43,940,813 = 43,940,813
and
-1 x -43,940,813 = 43,940,813
Notice both answers equal 43,940,813
With that explanation out of the way, let's continue. Next, we take the number 43,940,813 and divide it by 2:
43,940,813 ÷ 2 = 21,970,406.5
If the quotient is a whole number, then 2 and 21,970,406.5 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 | 43,940,813 | |
| -1 | -43,940,813 |
Now, we try dividing 43,940,813 by 3:
43,940,813 ÷ 3 = 14,646,937.6667
If the quotient is a whole number, then 3 and 14,646,937.6667 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 | 43,940,813 | |
| -1 | -43,940,813 |
Let's try dividing by 4:
43,940,813 ÷ 4 = 10,985,203.25
If the quotient is a whole number, then 4 and 10,985,203.25 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 | 43,940,813 | |
| -1 | 43,940,813 |
If you did it right, you will end up with this table:
| 1 | 7 | 89 | 251 | 281 | 623 | 1,757 | 1,967 | 22,339 | 25,009 | 70,531 | 156,373 | 175,063 | 493,717 | 6,277,259 | 43,940,813 |
| -1 | -7 | -89 | -251 | -281 | -623 | -1,757 | -1,967 | -22,339 | -25,009 | -70,531 | -156,373 | -175,063 | -493,717 | -6,277,259 | -43,940,813 |
Here are some more numbers to try:
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