A:
Positive:
1 x 1235622855 x 247124577 x 1765175511 x 1123293535 x 353035155 x 224658777 x 1604705385 x 320941
Negative:
-1 x -123562285-5 x -24712457-7 x -17651755-11 x -11232935-35 x -3530351-55 x -2246587-77 x -1604705-385 x -320941
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 123,562,285, 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 | 123,562,285 | |
| -1 | -123,562,285 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,562,285.
Example:
1 x 123,562,285 = 123,562,285
and
-1 x -123,562,285 = 123,562,285
Notice both answers equal 123,562,285
With that explanation out of the way, let's continue. Next, we take the number 123,562,285 and divide it by 2:
123,562,285 ÷ 2 = 61,781,142.5
If the quotient is a whole number, then 2 and 61,781,142.5 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 | 123,562,285 | |
| -1 | -123,562,285 |
Now, we try dividing 123,562,285 by 3:
123,562,285 ÷ 3 = 41,187,428.3333
If the quotient is a whole number, then 3 and 41,187,428.3333 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 | 123,562,285 | |
| -1 | -123,562,285 |
Let's try dividing by 4:
123,562,285 ÷ 4 = 30,890,571.25
If the quotient is a whole number, then 4 and 30,890,571.25 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 | 123,562,285 | |
| -1 | 123,562,285 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 320,941 | 1,604,705 | 2,246,587 | 3,530,351 | 11,232,935 | 17,651,755 | 24,712,457 | 123,562,285 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -320,941 | -1,604,705 | -2,246,587 | -3,530,351 | -11,232,935 | -17,651,755 | -24,712,457 | -123,562,285 |
Here are some more numbers to try:
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