A:
Positive:
1 x 131113155 x 26222637 x 187304535 x 374609101 x 129815505 x 25963707 x 185453535 x 3709
Negative:
-1 x -13111315-5 x -2622263-7 x -1873045-35 x -374609-101 x -129815-505 x -25963-707 x -18545-3535 x -3709
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 13,111,315, 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 | 13,111,315 | |
| -1 | -13,111,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,111,315.
Example:
1 x 13,111,315 = 13,111,315
and
-1 x -13,111,315 = 13,111,315
Notice both answers equal 13,111,315
With that explanation out of the way, let's continue. Next, we take the number 13,111,315 and divide it by 2:
13,111,315 ÷ 2 = 6,555,657.5
If the quotient is a whole number, then 2 and 6,555,657.5 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 | 13,111,315 | |
| -1 | -13,111,315 |
Now, we try dividing 13,111,315 by 3:
13,111,315 ÷ 3 = 4,370,438.3333
If the quotient is a whole number, then 3 and 4,370,438.3333 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 | 13,111,315 | |
| -1 | -13,111,315 |
Let's try dividing by 4:
13,111,315 ÷ 4 = 3,277,828.75
If the quotient is a whole number, then 4 and 3,277,828.75 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 | 13,111,315 | |
| -1 | 13,111,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 101 | 505 | 707 | 3,535 | 3,709 | 18,545 | 25,963 | 129,815 | 374,609 | 1,873,045 | 2,622,263 | 13,111,315 |
| -1 | -5 | -7 | -35 | -101 | -505 | -707 | -3,535 | -3,709 | -18,545 | -25,963 | -129,815 | -374,609 | -1,873,045 | -2,622,263 | -13,111,315 |
Here are some more numbers to try:
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