A:
Positive:
1 x 12637855 x 25275719 x 6651553 x 2384595 x 13303251 x 5035265 x 47691007 x 1255
Negative:
-1 x -1263785-5 x -252757-19 x -66515-53 x -23845-95 x -13303-251 x -5035-265 x -4769-1007 x -1255
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 1,263,785, 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 | 1,263,785 | |
| -1 | -1,263,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,263,785.
Example:
1 x 1,263,785 = 1,263,785
and
-1 x -1,263,785 = 1,263,785
Notice both answers equal 1,263,785
With that explanation out of the way, let's continue. Next, we take the number 1,263,785 and divide it by 2:
1,263,785 ÷ 2 = 631,892.5
If the quotient is a whole number, then 2 and 631,892.5 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 | 1,263,785 | |
| -1 | -1,263,785 |
Now, we try dividing 1,263,785 by 3:
1,263,785 ÷ 3 = 421,261.6667
If the quotient is a whole number, then 3 and 421,261.6667 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 | 1,263,785 | |
| -1 | -1,263,785 |
Let's try dividing by 4:
1,263,785 ÷ 4 = 315,946.25
If the quotient is a whole number, then 4 and 315,946.25 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 | 1,263,785 | |
| -1 | 1,263,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 53 | 95 | 251 | 265 | 1,007 | 1,255 | 4,769 | 5,035 | 13,303 | 23,845 | 66,515 | 252,757 | 1,263,785 |
| -1 | -5 | -19 | -53 | -95 | -251 | -265 | -1,007 | -1,255 | -4,769 | -5,035 | -13,303 | -23,845 | -66,515 | -252,757 | -1,263,785 |
Here are some more numbers to try:
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