A:
Positive:
1 x 131150117 x 187357313 x 100884791 x 144121167 x 78533863 x 151971169 x 112192171 x 6041
Negative:
-1 x -13115011-7 x -1873573-13 x -1008847-91 x -144121-167 x -78533-863 x -15197-1169 x -11219-2171 x -6041
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 13,115,011, 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 | 13,115,011 | |
| -1 | -13,115,011 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,115,011.
Example:
1 x 13,115,011 = 13,115,011
and
-1 x -13,115,011 = 13,115,011
Notice both answers equal 13,115,011
With that explanation out of the way, let's continue. Next, we take the number 13,115,011 and divide it by 2:
13,115,011 ÷ 2 = 6,557,505.5
If the quotient is a whole number, then 2 and 6,557,505.5 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 | 13,115,011 | |
| -1 | -13,115,011 |
Now, we try dividing 13,115,011 by 3:
13,115,011 ÷ 3 = 4,371,670.3333
If the quotient is a whole number, then 3 and 4,371,670.3333 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 | 13,115,011 | |
| -1 | -13,115,011 |
Let's try dividing by 4:
13,115,011 ÷ 4 = 3,278,752.75
If the quotient is a whole number, then 4 and 3,278,752.75 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 | 13,115,011 | |
| -1 | 13,115,011 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 167 | 863 | 1,169 | 2,171 | 6,041 | 11,219 | 15,197 | 78,533 | 144,121 | 1,008,847 | 1,873,573 | 13,115,011 |
| -1 | -7 | -13 | -91 | -167 | -863 | -1,169 | -2,171 | -6,041 | -11,219 | -15,197 | -78,533 | -144,121 | -1,008,847 | -1,873,573 | -13,115,011 |
Here are some more numbers to try:
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