A:
Positive:
1 x 1242103317 x 1774433347 x 2642773223 x 556997329 x 3775391561 x 795711693 x 7336710481 x 11851
Negative:
-1 x -124210331-7 x -17744333-47 x -2642773-223 x -556997-329 x -377539-1561 x -79571-1693 x -73367-10481 x -11851
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 124,210,331, 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 | 124,210,331 | |
| -1 | -124,210,331 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,210,331.
Example:
1 x 124,210,331 = 124,210,331
and
-1 x -124,210,331 = 124,210,331
Notice both answers equal 124,210,331
With that explanation out of the way, let's continue. Next, we take the number 124,210,331 and divide it by 2:
124,210,331 ÷ 2 = 62,105,165.5
If the quotient is a whole number, then 2 and 62,105,165.5 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 | 124,210,331 | |
| -1 | -124,210,331 |
Now, we try dividing 124,210,331 by 3:
124,210,331 ÷ 3 = 41,403,443.6667
If the quotient is a whole number, then 3 and 41,403,443.6667 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 | 124,210,331 | |
| -1 | -124,210,331 |
Let's try dividing by 4:
124,210,331 ÷ 4 = 31,052,582.75
If the quotient is a whole number, then 4 and 31,052,582.75 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 | 124,210,331 | |
| -1 | 124,210,331 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 223 | 329 | 1,561 | 1,693 | 10,481 | 11,851 | 73,367 | 79,571 | 377,539 | 556,997 | 2,642,773 | 17,744,333 | 124,210,331 |
| -1 | -7 | -47 | -223 | -329 | -1,561 | -1,693 | -10,481 | -11,851 | -73,367 | -79,571 | -377,539 | -556,997 | -2,642,773 | -17,744,333 | -124,210,331 |
Here are some more numbers to try:
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