A:
Positive:
1 x 423174055 x 846348113 x 325518565 x 651037439 x 963951483 x 285352195 x 192795707 x 7415
Negative:
-1 x -42317405-5 x -8463481-13 x -3255185-65 x -651037-439 x -96395-1483 x -28535-2195 x -19279-5707 x -7415
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 42,317,405, 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 | 42,317,405 | |
| -1 | -42,317,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,317,405.
Example:
1 x 42,317,405 = 42,317,405
and
-1 x -42,317,405 = 42,317,405
Notice both answers equal 42,317,405
With that explanation out of the way, let's continue. Next, we take the number 42,317,405 and divide it by 2:
42,317,405 ÷ 2 = 21,158,702.5
If the quotient is a whole number, then 2 and 21,158,702.5 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 | 42,317,405 | |
| -1 | -42,317,405 |
Now, we try dividing 42,317,405 by 3:
42,317,405 ÷ 3 = 14,105,801.6667
If the quotient is a whole number, then 3 and 14,105,801.6667 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 | 42,317,405 | |
| -1 | -42,317,405 |
Let's try dividing by 4:
42,317,405 ÷ 4 = 10,579,351.25
If the quotient is a whole number, then 4 and 10,579,351.25 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 | 42,317,405 | |
| -1 | 42,317,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 439 | 1,483 | 2,195 | 5,707 | 7,415 | 19,279 | 28,535 | 96,395 | 651,037 | 3,255,185 | 8,463,481 | 42,317,405 |
| -1 | -5 | -13 | -65 | -439 | -1,483 | -2,195 | -5,707 | -7,415 | -19,279 | -28,535 | -96,395 | -651,037 | -3,255,185 | -8,463,481 | -42,317,405 |
Here are some more numbers to try:
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