A:
Positive:
1 x 126641655 x 253283319 x 66653595 x 133307109 x 116185545 x 232371223 x 103552071 x 6115
Negative:
-1 x -12664165-5 x -2532833-19 x -666535-95 x -133307-109 x -116185-545 x -23237-1223 x -10355-2071 x -6115
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 12,664,165, 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 | 12,664,165 | |
| -1 | -12,664,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,664,165.
Example:
1 x 12,664,165 = 12,664,165
and
-1 x -12,664,165 = 12,664,165
Notice both answers equal 12,664,165
With that explanation out of the way, let's continue. Next, we take the number 12,664,165 and divide it by 2:
12,664,165 ÷ 2 = 6,332,082.5
If the quotient is a whole number, then 2 and 6,332,082.5 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 | 12,664,165 | |
| -1 | -12,664,165 |
Now, we try dividing 12,664,165 by 3:
12,664,165 ÷ 3 = 4,221,388.3333
If the quotient is a whole number, then 3 and 4,221,388.3333 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 | 12,664,165 | |
| -1 | -12,664,165 |
Let's try dividing by 4:
12,664,165 ÷ 4 = 3,166,041.25
If the quotient is a whole number, then 4 and 3,166,041.25 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 | 12,664,165 | |
| -1 | 12,664,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 109 | 545 | 1,223 | 2,071 | 6,115 | 10,355 | 23,237 | 116,185 | 133,307 | 666,535 | 2,532,833 | 12,664,165 |
| -1 | -5 | -19 | -95 | -109 | -545 | -1,223 | -2,071 | -6,115 | -10,355 | -23,237 | -116,185 | -133,307 | -666,535 | -2,532,833 | -12,664,165 |
Here are some more numbers to try:
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