A:
Positive:
1 x 13092555 x 26185117 x 7701573 x 1793585 x 15403211 x 6205365 x 35871055 x 1241
Negative:
-1 x -1309255-5 x -261851-17 x -77015-73 x -17935-85 x -15403-211 x -6205-365 x -3587-1055 x -1241
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 1,309,255, 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 | 1,309,255 | |
| -1 | -1,309,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,309,255.
Example:
1 x 1,309,255 = 1,309,255
and
-1 x -1,309,255 = 1,309,255
Notice both answers equal 1,309,255
With that explanation out of the way, let's continue. Next, we take the number 1,309,255 and divide it by 2:
1,309,255 ÷ 2 = 654,627.5
If the quotient is a whole number, then 2 and 654,627.5 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 | 1,309,255 | |
| -1 | -1,309,255 |
Now, we try dividing 1,309,255 by 3:
1,309,255 ÷ 3 = 436,418.3333
If the quotient is a whole number, then 3 and 436,418.3333 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 | 1,309,255 | |
| -1 | -1,309,255 |
Let's try dividing by 4:
1,309,255 ÷ 4 = 327,313.75
If the quotient is a whole number, then 4 and 327,313.75 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 | 1,309,255 | |
| -1 | 1,309,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 73 | 85 | 211 | 365 | 1,055 | 1,241 | 3,587 | 6,205 | 15,403 | 17,935 | 77,015 | 261,851 | 1,309,255 |
| -1 | -5 | -17 | -73 | -85 | -211 | -365 | -1,055 | -1,241 | -3,587 | -6,205 | -15,403 | -17,935 | -77,015 | -261,851 | -1,309,255 |
Here are some more numbers to try:
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