A:
Positive:
1 x 108818717 x 155455311 x 98926113 x 83706749 x 22207977 x 14132391 x 119581143 x 76097539 x 20189637 x 170831001 x 108711553 x 7007
Negative:
-1 x -10881871-7 x -1554553-11 x -989261-13 x -837067-49 x -222079-77 x -141323-91 x -119581-143 x -76097-539 x -20189-637 x -17083-1001 x -10871-1553 x -7007
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 10,881,871, 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 | 10,881,871 | |
| -1 | -10,881,871 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,881,871.
Example:
1 x 10,881,871 = 10,881,871
and
-1 x -10,881,871 = 10,881,871
Notice both answers equal 10,881,871
With that explanation out of the way, let's continue. Next, we take the number 10,881,871 and divide it by 2:
10,881,871 ÷ 2 = 5,440,935.5
If the quotient is a whole number, then 2 and 5,440,935.5 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 | 10,881,871 | |
| -1 | -10,881,871 |
Now, we try dividing 10,881,871 by 3:
10,881,871 ÷ 3 = 3,627,290.3333
If the quotient is a whole number, then 3 and 3,627,290.3333 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 | 10,881,871 | |
| -1 | -10,881,871 |
Let's try dividing by 4:
10,881,871 ÷ 4 = 2,720,467.75
If the quotient is a whole number, then 4 and 2,720,467.75 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 | 10,881,871 | |
| -1 | 10,881,871 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 13 | 49 | 77 | 91 | 143 | 539 | 637 | 1,001 | 1,553 | 7,007 | 10,871 | 17,083 | 20,189 | 76,097 | 119,581 | 141,323 | 222,079 | 837,067 | 989,261 | 1,554,553 | 10,881,871 |
| -1 | -7 | -11 | -13 | -49 | -77 | -91 | -143 | -539 | -637 | -1,001 | -1,553 | -7,007 | -10,871 | -17,083 | -20,189 | -76,097 | -119,581 | -141,323 | -222,079 | -837,067 | -989,261 | -1,554,553 | -10,881,871 |
Here are some more numbers to try:
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