A:
Positive:
1 x 1284154311 x 116741313 x 98781189 x 144287143 x 89801979 x 131171009 x 127271157 x 11099
Negative:
-1 x -12841543-11 x -1167413-13 x -987811-89 x -144287-143 x -89801-979 x -13117-1009 x -12727-1157 x -11099
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 12,841,543, 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 | 12,841,543 | |
| -1 | -12,841,543 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,841,543.
Example:
1 x 12,841,543 = 12,841,543
and
-1 x -12,841,543 = 12,841,543
Notice both answers equal 12,841,543
With that explanation out of the way, let's continue. Next, we take the number 12,841,543 and divide it by 2:
12,841,543 ÷ 2 = 6,420,771.5
If the quotient is a whole number, then 2 and 6,420,771.5 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 | 12,841,543 | |
| -1 | -12,841,543 |
Now, we try dividing 12,841,543 by 3:
12,841,543 ÷ 3 = 4,280,514.3333
If the quotient is a whole number, then 3 and 4,280,514.3333 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 | 12,841,543 | |
| -1 | -12,841,543 |
Let's try dividing by 4:
12,841,543 ÷ 4 = 3,210,385.75
If the quotient is a whole number, then 4 and 3,210,385.75 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 | 12,841,543 | |
| -1 | 12,841,543 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 89 | 143 | 979 | 1,009 | 1,157 | 11,099 | 12,727 | 13,117 | 89,801 | 144,287 | 987,811 | 1,167,413 | 12,841,543 |
| -1 | -11 | -13 | -89 | -143 | -979 | -1,009 | -1,157 | -11,099 | -12,727 | -13,117 | -89,801 | -144,287 | -987,811 | -1,167,413 | -12,841,543 |
Here are some more numbers to try:
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