A:
Positive:
1 x 432123855 x 864247717 x 254190585 x 508381127 x 340255635 x 680512159 x 200154003 x 10795
Negative:
-1 x -43212385-5 x -8642477-17 x -2541905-85 x -508381-127 x -340255-635 x -68051-2159 x -20015-4003 x -10795
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 43,212,385, 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 | 43,212,385 | |
| -1 | -43,212,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 43,212,385.
Example:
1 x 43,212,385 = 43,212,385
and
-1 x -43,212,385 = 43,212,385
Notice both answers equal 43,212,385
With that explanation out of the way, let's continue. Next, we take the number 43,212,385 and divide it by 2:
43,212,385 ÷ 2 = 21,606,192.5
If the quotient is a whole number, then 2 and 21,606,192.5 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 | 43,212,385 | |
| -1 | -43,212,385 |
Now, we try dividing 43,212,385 by 3:
43,212,385 ÷ 3 = 14,404,128.3333
If the quotient is a whole number, then 3 and 14,404,128.3333 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 | 43,212,385 | |
| -1 | -43,212,385 |
Let's try dividing by 4:
43,212,385 ÷ 4 = 10,803,096.25
If the quotient is a whole number, then 4 and 10,803,096.25 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 | 43,212,385 | |
| -1 | 43,212,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 127 | 635 | 2,159 | 4,003 | 10,795 | 20,015 | 68,051 | 340,255 | 508,381 | 2,541,905 | 8,642,477 | 43,212,385 |
| -1 | -5 | -17 | -85 | -127 | -635 | -2,159 | -4,003 | -10,795 | -20,015 | -68,051 | -340,255 | -508,381 | -2,541,905 | -8,642,477 | -43,212,385 |
Here are some more numbers to try:
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