A:
Positive:
1 x 133325055 x 266650117 x 78426585 x 156853101 x 132005505 x 264011553 x 85851717 x 7765
Negative:
-1 x -13332505-5 x -2666501-17 x -784265-85 x -156853-101 x -132005-505 x -26401-1553 x -8585-1717 x -7765
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 13,332,505, 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 | 13,332,505 | |
| -1 | -13,332,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,332,505.
Example:
1 x 13,332,505 = 13,332,505
and
-1 x -13,332,505 = 13,332,505
Notice both answers equal 13,332,505
With that explanation out of the way, let's continue. Next, we take the number 13,332,505 and divide it by 2:
13,332,505 ÷ 2 = 6,666,252.5
If the quotient is a whole number, then 2 and 6,666,252.5 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 | 13,332,505 | |
| -1 | -13,332,505 |
Now, we try dividing 13,332,505 by 3:
13,332,505 ÷ 3 = 4,444,168.3333
If the quotient is a whole number, then 3 and 4,444,168.3333 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 | 13,332,505 | |
| -1 | -13,332,505 |
Let's try dividing by 4:
13,332,505 ÷ 4 = 3,333,126.25
If the quotient is a whole number, then 4 and 3,333,126.25 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 | 13,332,505 | |
| -1 | 13,332,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 101 | 505 | 1,553 | 1,717 | 7,765 | 8,585 | 26,401 | 132,005 | 156,853 | 784,265 | 2,666,501 | 13,332,505 |
| -1 | -5 | -17 | -85 | -101 | -505 | -1,553 | -1,717 | -7,765 | -8,585 | -26,401 | -132,005 | -156,853 | -784,265 | -2,666,501 | -13,332,505 |
Here are some more numbers to try:
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