A:
Positive:
1 x 125153355 x 25030677 x 178790523 x 54414535 x 35758149 x 255415115 x 108829161 x 77735245 x 51083805 x 155471127 x 111052221 x 5635
Negative:
-1 x -12515335-5 x -2503067-7 x -1787905-23 x -544145-35 x -357581-49 x -255415-115 x -108829-161 x -77735-245 x -51083-805 x -15547-1127 x -11105-2221 x -5635
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 12,515,335, 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 | 12,515,335 | |
| -1 | -12,515,335 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,515,335.
Example:
1 x 12,515,335 = 12,515,335
and
-1 x -12,515,335 = 12,515,335
Notice both answers equal 12,515,335
With that explanation out of the way, let's continue. Next, we take the number 12,515,335 and divide it by 2:
12,515,335 ÷ 2 = 6,257,667.5
If the quotient is a whole number, then 2 and 6,257,667.5 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 | 12,515,335 | |
| -1 | -12,515,335 |
Now, we try dividing 12,515,335 by 3:
12,515,335 ÷ 3 = 4,171,778.3333
If the quotient is a whole number, then 3 and 4,171,778.3333 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 | 12,515,335 | |
| -1 | -12,515,335 |
Let's try dividing by 4:
12,515,335 ÷ 4 = 3,128,833.75
If the quotient is a whole number, then 4 and 3,128,833.75 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 | 12,515,335 | |
| -1 | 12,515,335 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 49 | 115 | 161 | 245 | 805 | 1,127 | 2,221 | 5,635 | 11,105 | 15,547 | 51,083 | 77,735 | 108,829 | 255,415 | 357,581 | 544,145 | 1,787,905 | 2,503,067 | 12,515,335 |
| -1 | -5 | -7 | -23 | -35 | -49 | -115 | -161 | -245 | -805 | -1,127 | -2,221 | -5,635 | -11,105 | -15,547 | -51,083 | -77,735 | -108,829 | -255,415 | -357,581 | -544,145 | -1,787,905 | -2,503,067 | -12,515,335 |
Here are some more numbers to try:
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