A:
Positive:
1 x 1115242711 x 101385713 x 857879143 x 77989167 x 66781467 x 238811837 x 60712171 x 5137
Negative:
-1 x -11152427-11 x -1013857-13 x -857879-143 x -77989-167 x -66781-467 x -23881-1837 x -6071-2171 x -5137
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 11,152,427, 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 | 11,152,427 | |
| -1 | -11,152,427 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,152,427.
Example:
1 x 11,152,427 = 11,152,427
and
-1 x -11,152,427 = 11,152,427
Notice both answers equal 11,152,427
With that explanation out of the way, let's continue. Next, we take the number 11,152,427 and divide it by 2:
11,152,427 ÷ 2 = 5,576,213.5
If the quotient is a whole number, then 2 and 5,576,213.5 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 | 11,152,427 | |
| -1 | -11,152,427 |
Now, we try dividing 11,152,427 by 3:
11,152,427 ÷ 3 = 3,717,475.6667
If the quotient is a whole number, then 3 and 3,717,475.6667 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 | 11,152,427 | |
| -1 | -11,152,427 |
Let's try dividing by 4:
11,152,427 ÷ 4 = 2,788,106.75
If the quotient is a whole number, then 4 and 2,788,106.75 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 | 11,152,427 | |
| -1 | 11,152,427 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 167 | 467 | 1,837 | 2,171 | 5,137 | 6,071 | 23,881 | 66,781 | 77,989 | 857,879 | 1,013,857 | 11,152,427 |
| -1 | -11 | -13 | -143 | -167 | -467 | -1,837 | -2,171 | -5,137 | -6,071 | -23,881 | -66,781 | -77,989 | -857,879 | -1,013,857 | -11,152,427 |
Here are some more numbers to try:
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