A:
Positive:
1 x 15657855 x 31315713 x 12044517 x 9210565 x 2408985 x 18421109 x 14365169 x 9265221 x 7085545 x 2873845 x 18531105 x 1417
Negative:
-1 x -1565785-5 x -313157-13 x -120445-17 x -92105-65 x -24089-85 x -18421-109 x -14365-169 x -9265-221 x -7085-545 x -2873-845 x -1853-1105 x -1417
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 1,565,785, 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 | 1,565,785 | |
| -1 | -1,565,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,565,785.
Example:
1 x 1,565,785 = 1,565,785
and
-1 x -1,565,785 = 1,565,785
Notice both answers equal 1,565,785
With that explanation out of the way, let's continue. Next, we take the number 1,565,785 and divide it by 2:
1,565,785 ÷ 2 = 782,892.5
If the quotient is a whole number, then 2 and 782,892.5 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 | 1,565,785 | |
| -1 | -1,565,785 |
Now, we try dividing 1,565,785 by 3:
1,565,785 ÷ 3 = 521,928.3333
If the quotient is a whole number, then 3 and 521,928.3333 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 | 1,565,785 | |
| -1 | -1,565,785 |
Let's try dividing by 4:
1,565,785 ÷ 4 = 391,446.25
If the quotient is a whole number, then 4 and 391,446.25 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 | 1,565,785 | |
| -1 | 1,565,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 17 | 65 | 85 | 109 | 169 | 221 | 545 | 845 | 1,105 | 1,417 | 1,853 | 2,873 | 7,085 | 9,265 | 14,365 | 18,421 | 24,089 | 92,105 | 120,445 | 313,157 | 1,565,785 |
| -1 | -5 | -13 | -17 | -65 | -85 | -109 | -169 | -221 | -545 | -845 | -1,105 | -1,417 | -1,853 | -2,873 | -7,085 | -9,265 | -14,365 | -18,421 | -24,089 | -92,105 | -120,445 | -313,157 | -1,565,785 |
Here are some more numbers to try:
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