A:
Positive:
1 x 112132937 x 160189913 x 86256191 x 123223149 x 75257827 x 135591043 x 107511937 x 5789
Negative:
-1 x -11213293-7 x -1601899-13 x -862561-91 x -123223-149 x -75257-827 x -13559-1043 x -10751-1937 x -5789
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 11,213,293, 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 | 11,213,293 | |
| -1 | -11,213,293 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,213,293.
Example:
1 x 11,213,293 = 11,213,293
and
-1 x -11,213,293 = 11,213,293
Notice both answers equal 11,213,293
With that explanation out of the way, let's continue. Next, we take the number 11,213,293 and divide it by 2:
11,213,293 ÷ 2 = 5,606,646.5
If the quotient is a whole number, then 2 and 5,606,646.5 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 | 11,213,293 | |
| -1 | -11,213,293 |
Now, we try dividing 11,213,293 by 3:
11,213,293 ÷ 3 = 3,737,764.3333
If the quotient is a whole number, then 3 and 3,737,764.3333 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 | 11,213,293 | |
| -1 | -11,213,293 |
Let's try dividing by 4:
11,213,293 ÷ 4 = 2,803,323.25
If the quotient is a whole number, then 4 and 2,803,323.25 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 | 11,213,293 | |
| -1 | 11,213,293 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 149 | 827 | 1,043 | 1,937 | 5,789 | 10,751 | 13,559 | 75,257 | 123,223 | 862,561 | 1,601,899 | 11,213,293 |
| -1 | -7 | -13 | -91 | -149 | -827 | -1,043 | -1,937 | -5,789 | -10,751 | -13,559 | -75,257 | -123,223 | -862,561 | -1,601,899 | -11,213,293 |
Here are some more numbers to try:
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