A:
Positive:
1 x 1226210055 x 2452420113 x 943238565 x 1886477743 x 1650352539 x 482953715 x 330079659 x 12695
Negative:
-1 x -122621005-5 x -24524201-13 x -9432385-65 x -1886477-743 x -165035-2539 x -48295-3715 x -33007-9659 x -12695
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 122,621,005, 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 | 122,621,005 | |
| -1 | -122,621,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,621,005.
Example:
1 x 122,621,005 = 122,621,005
and
-1 x -122,621,005 = 122,621,005
Notice both answers equal 122,621,005
With that explanation out of the way, let's continue. Next, we take the number 122,621,005 and divide it by 2:
122,621,005 ÷ 2 = 61,310,502.5
If the quotient is a whole number, then 2 and 61,310,502.5 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 | 122,621,005 | |
| -1 | -122,621,005 |
Now, we try dividing 122,621,005 by 3:
122,621,005 ÷ 3 = 40,873,668.3333
If the quotient is a whole number, then 3 and 40,873,668.3333 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 | 122,621,005 | |
| -1 | -122,621,005 |
Let's try dividing by 4:
122,621,005 ÷ 4 = 30,655,251.25
If the quotient is a whole number, then 4 and 30,655,251.25 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 | 122,621,005 | |
| -1 | 122,621,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 743 | 2,539 | 3,715 | 9,659 | 12,695 | 33,007 | 48,295 | 165,035 | 1,886,477 | 9,432,385 | 24,524,201 | 122,621,005 |
| -1 | -5 | -13 | -65 | -743 | -2,539 | -3,715 | -9,659 | -12,695 | -33,007 | -48,295 | -165,035 | -1,886,477 | -9,432,385 | -24,524,201 | -122,621,005 |
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