A:
Positive:
1 x 12262638713 x 9432799107 x 1146041199 x 616213443 x 2768091391 x 881572587 x 474015759 x 21293
Negative:
-1 x -122626387-13 x -9432799-107 x -1146041-199 x -616213-443 x -276809-1391 x -88157-2587 x -47401-5759 x -21293
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 122,626,387, 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 | 122,626,387 | |
| -1 | -122,626,387 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,626,387.
Example:
1 x 122,626,387 = 122,626,387
and
-1 x -122,626,387 = 122,626,387
Notice both answers equal 122,626,387
With that explanation out of the way, let's continue. Next, we take the number 122,626,387 and divide it by 2:
122,626,387 ÷ 2 = 61,313,193.5
If the quotient is a whole number, then 2 and 61,313,193.5 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 | 122,626,387 | |
| -1 | -122,626,387 |
Now, we try dividing 122,626,387 by 3:
122,626,387 ÷ 3 = 40,875,462.3333
If the quotient is a whole number, then 3 and 40,875,462.3333 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 | 122,626,387 | |
| -1 | -122,626,387 |
Let's try dividing by 4:
122,626,387 ÷ 4 = 30,656,596.75
If the quotient is a whole number, then 4 and 30,656,596.75 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 | 122,626,387 | |
| -1 | 122,626,387 |
If you did it right, you will end up with this table:
| 1 | 13 | 107 | 199 | 443 | 1,391 | 2,587 | 5,759 | 21,293 | 47,401 | 88,157 | 276,809 | 616,213 | 1,146,041 | 9,432,799 | 122,626,387 |
| -1 | -13 | -107 | -199 | -443 | -1,391 | -2,587 | -5,759 | -21,293 | -47,401 | -88,157 | -276,809 | -616,213 | -1,146,041 | -9,432,799 | -122,626,387 |
Here are some more numbers to try:
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