A:
Positive:
1 x 1254163117 x 73774337 x 338963127 x 98753157 x 79883629 x 199392159 x 58092669 x 4699
Negative:
-1 x -12541631-17 x -737743-37 x -338963-127 x -98753-157 x -79883-629 x -19939-2159 x -5809-2669 x -4699
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 12,541,631, 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 | 12,541,631 | |
| -1 | -12,541,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,541,631.
Example:
1 x 12,541,631 = 12,541,631
and
-1 x -12,541,631 = 12,541,631
Notice both answers equal 12,541,631
With that explanation out of the way, let's continue. Next, we take the number 12,541,631 and divide it by 2:
12,541,631 ÷ 2 = 6,270,815.5
If the quotient is a whole number, then 2 and 6,270,815.5 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 | 12,541,631 | |
| -1 | -12,541,631 |
Now, we try dividing 12,541,631 by 3:
12,541,631 ÷ 3 = 4,180,543.6667
If the quotient is a whole number, then 3 and 4,180,543.6667 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 | 12,541,631 | |
| -1 | -12,541,631 |
Let's try dividing by 4:
12,541,631 ÷ 4 = 3,135,407.75
If the quotient is a whole number, then 4 and 3,135,407.75 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 | 12,541,631 | |
| -1 | 12,541,631 |
If you did it right, you will end up with this table:
| 1 | 17 | 37 | 127 | 157 | 629 | 2,159 | 2,669 | 4,699 | 5,809 | 19,939 | 79,883 | 98,753 | 338,963 | 737,743 | 12,541,631 |
| -1 | -17 | -37 | -127 | -157 | -629 | -2,159 | -2,669 | -4,699 | -5,809 | -19,939 | -79,883 | -98,753 | -338,963 | -737,743 | -12,541,631 |
Here are some more numbers to try:
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