A:
Positive:
1 x 111395055 x 222790113 x 85688517 x 65526565 x 17137785 x 131053221 x 50405289 x 38545593 x 187851105 x 100811445 x 77092965 x 3757
Negative:
-1 x -11139505-5 x -2227901-13 x -856885-17 x -655265-65 x -171377-85 x -131053-221 x -50405-289 x -38545-593 x -18785-1105 x -10081-1445 x -7709-2965 x -3757
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 11,139,505, 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 | 11,139,505 | |
| -1 | -11,139,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,139,505.
Example:
1 x 11,139,505 = 11,139,505
and
-1 x -11,139,505 = 11,139,505
Notice both answers equal 11,139,505
With that explanation out of the way, let's continue. Next, we take the number 11,139,505 and divide it by 2:
11,139,505 ÷ 2 = 5,569,752.5
If the quotient is a whole number, then 2 and 5,569,752.5 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 | 11,139,505 | |
| -1 | -11,139,505 |
Now, we try dividing 11,139,505 by 3:
11,139,505 ÷ 3 = 3,713,168.3333
If the quotient is a whole number, then 3 and 3,713,168.3333 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 | 11,139,505 | |
| -1 | -11,139,505 |
Let's try dividing by 4:
11,139,505 ÷ 4 = 2,784,876.25
If the quotient is a whole number, then 4 and 2,784,876.25 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 | 11,139,505 | |
| -1 | 11,139,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 17 | 65 | 85 | 221 | 289 | 593 | 1,105 | 1,445 | 2,965 | 3,757 | 7,709 | 10,081 | 18,785 | 38,545 | 50,405 | 131,053 | 171,377 | 655,265 | 856,885 | 2,227,901 | 11,139,505 |
| -1 | -5 | -13 | -17 | -65 | -85 | -221 | -289 | -593 | -1,105 | -1,445 | -2,965 | -3,757 | -7,709 | -10,081 | -18,785 | -38,545 | -50,405 | -131,053 | -171,377 | -655,265 | -856,885 | -2,227,901 | -11,139,505 |
Here are some more numbers to try:
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