A:
Positive:
1 x 13047655 x 2609537 x 18639511 x 11861535 x 3727955 x 2372377 x 16945385 x 3389
Negative:
-1 x -1304765-5 x -260953-7 x -186395-11 x -118615-35 x -37279-55 x -23723-77 x -16945-385 x -3389
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 1,304,765, 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 | 1,304,765 | |
| -1 | -1,304,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,304,765.
Example:
1 x 1,304,765 = 1,304,765
and
-1 x -1,304,765 = 1,304,765
Notice both answers equal 1,304,765
With that explanation out of the way, let's continue. Next, we take the number 1,304,765 and divide it by 2:
1,304,765 ÷ 2 = 652,382.5
If the quotient is a whole number, then 2 and 652,382.5 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 | 1,304,765 | |
| -1 | -1,304,765 |
Now, we try dividing 1,304,765 by 3:
1,304,765 ÷ 3 = 434,921.6667
If the quotient is a whole number, then 3 and 434,921.6667 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 | 1,304,765 | |
| -1 | -1,304,765 |
Let's try dividing by 4:
1,304,765 ÷ 4 = 326,191.25
If the quotient is a whole number, then 4 and 326,191.25 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 | 1,304,765 | |
| -1 | 1,304,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 3,389 | 16,945 | 23,723 | 37,279 | 118,615 | 186,395 | 260,953 | 1,304,765 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -3,389 | -16,945 | -23,723 | -37,279 | -118,615 | -186,395 | -260,953 | -1,304,765 |
Here are some more numbers to try:
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