A:
Positive:
1 x 1349129329 x 46521731 x 43520343 x 313751349 x 38657899 x 150071247 x 108191333 x 10121
Negative:
-1 x -13491293-29 x -465217-31 x -435203-43 x -313751-349 x -38657-899 x -15007-1247 x -10819-1333 x -10121
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 13,491,293, 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 | 13,491,293 | |
| -1 | -13,491,293 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,491,293.
Example:
1 x 13,491,293 = 13,491,293
and
-1 x -13,491,293 = 13,491,293
Notice both answers equal 13,491,293
With that explanation out of the way, let's continue. Next, we take the number 13,491,293 and divide it by 2:
13,491,293 ÷ 2 = 6,745,646.5
If the quotient is a whole number, then 2 and 6,745,646.5 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 | 13,491,293 | |
| -1 | -13,491,293 |
Now, we try dividing 13,491,293 by 3:
13,491,293 ÷ 3 = 4,497,097.6667
If the quotient is a whole number, then 3 and 4,497,097.6667 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 | 13,491,293 | |
| -1 | -13,491,293 |
Let's try dividing by 4:
13,491,293 ÷ 4 = 3,372,823.25
If the quotient is a whole number, then 4 and 3,372,823.25 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 | 13,491,293 | |
| -1 | 13,491,293 |
If you did it right, you will end up with this table:
| 1 | 29 | 31 | 43 | 349 | 899 | 1,247 | 1,333 | 10,121 | 10,819 | 15,007 | 38,657 | 313,751 | 435,203 | 465,217 | 13,491,293 |
| -1 | -29 | -31 | -43 | -349 | -899 | -1,247 | -1,333 | -10,121 | -10,819 | -15,007 | -38,657 | -313,751 | -435,203 | -465,217 | -13,491,293 |
Here are some more numbers to try:
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