A:
Positive:
1 x 4221055155 x 8442110313 x 3246965553 x 796425565 x 6493931265 x 1592851689 x 6126353445 x 122527
Negative:
-1 x -422105515-5 x -84421103-13 x -32469655-53 x -7964255-65 x -6493931-265 x -1592851-689 x -612635-3445 x -122527
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 422,105,515, 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 | 422,105,515 | |
| -1 | -422,105,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 422,105,515.
Example:
1 x 422,105,515 = 422,105,515
and
-1 x -422,105,515 = 422,105,515
Notice both answers equal 422,105,515
With that explanation out of the way, let's continue. Next, we take the number 422,105,515 and divide it by 2:
422,105,515 ÷ 2 = 211,052,757.5
If the quotient is a whole number, then 2 and 211,052,757.5 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 | 422,105,515 | |
| -1 | -422,105,515 |
Now, we try dividing 422,105,515 by 3:
422,105,515 ÷ 3 = 140,701,838.3333
If the quotient is a whole number, then 3 and 140,701,838.3333 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 | 422,105,515 | |
| -1 | -422,105,515 |
Let's try dividing by 4:
422,105,515 ÷ 4 = 105,526,378.75
If the quotient is a whole number, then 4 and 105,526,378.75 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 | 422,105,515 | |
| -1 | 422,105,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 53 | 65 | 265 | 689 | 3,445 | 122,527 | 612,635 | 1,592,851 | 6,493,931 | 7,964,255 | 32,469,655 | 84,421,103 | 422,105,515 |
| -1 | -5 | -13 | -53 | -65 | -265 | -689 | -3,445 | -122,527 | -612,635 | -1,592,851 | -6,493,931 | -7,964,255 | -32,469,655 | -84,421,103 | -422,105,515 |
Here are some more numbers to try:
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