A:
Positive:
1 x 124137655 x 24827537 x 177339513 x 95490535 x 35467965 x 19098191 x 136415455 x 27283
Negative:
-1 x -12413765-5 x -2482753-7 x -1773395-13 x -954905-35 x -354679-65 x -190981-91 x -136415-455 x -27283
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 12,413,765, 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 | 12,413,765 | |
| -1 | -12,413,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,413,765.
Example:
1 x 12,413,765 = 12,413,765
and
-1 x -12,413,765 = 12,413,765
Notice both answers equal 12,413,765
With that explanation out of the way, let's continue. Next, we take the number 12,413,765 and divide it by 2:
12,413,765 ÷ 2 = 6,206,882.5
If the quotient is a whole number, then 2 and 6,206,882.5 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 | 12,413,765 | |
| -1 | -12,413,765 |
Now, we try dividing 12,413,765 by 3:
12,413,765 ÷ 3 = 4,137,921.6667
If the quotient is a whole number, then 3 and 4,137,921.6667 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 | 12,413,765 | |
| -1 | -12,413,765 |
Let's try dividing by 4:
12,413,765 ÷ 4 = 3,103,441.25
If the quotient is a whole number, then 4 and 3,103,441.25 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 | 12,413,765 | |
| -1 | 12,413,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 27,283 | 136,415 | 190,981 | 354,679 | 954,905 | 1,773,395 | 2,482,753 | 12,413,765 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -27,283 | -136,415 | -190,981 | -354,679 | -954,905 | -1,773,395 | -2,482,753 | -12,413,765 |
Here are some more numbers to try:
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