A:
Positive:
1 x 131823855 x 263647729 x 454565145 x 90913229 x 57565397 x 332051145 x 115131985 x 6641
Negative:
-1 x -13182385-5 x -2636477-29 x -454565-145 x -90913-229 x -57565-397 x -33205-1145 x -11513-1985 x -6641
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 13,182,385, 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 | 13,182,385 | |
| -1 | -13,182,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,182,385.
Example:
1 x 13,182,385 = 13,182,385
and
-1 x -13,182,385 = 13,182,385
Notice both answers equal 13,182,385
With that explanation out of the way, let's continue. Next, we take the number 13,182,385 and divide it by 2:
13,182,385 ÷ 2 = 6,591,192.5
If the quotient is a whole number, then 2 and 6,591,192.5 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 | 13,182,385 | |
| -1 | -13,182,385 |
Now, we try dividing 13,182,385 by 3:
13,182,385 ÷ 3 = 4,394,128.3333
If the quotient is a whole number, then 3 and 4,394,128.3333 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 | 13,182,385 | |
| -1 | -13,182,385 |
Let's try dividing by 4:
13,182,385 ÷ 4 = 3,295,596.25
If the quotient is a whole number, then 4 and 3,295,596.25 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 | 13,182,385 | |
| -1 | 13,182,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 229 | 397 | 1,145 | 1,985 | 6,641 | 11,513 | 33,205 | 57,565 | 90,913 | 454,565 | 2,636,477 | 13,182,385 |
| -1 | -5 | -29 | -145 | -229 | -397 | -1,145 | -1,985 | -6,641 | -11,513 | -33,205 | -57,565 | -90,913 | -454,565 | -2,636,477 | -13,182,385 |
Here are some more numbers to try:
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