A:
Positive:
1 x 12253855 x 2450777 x 17505535 x 35011157 x 7805223 x 5495785 x 15611099 x 1115
Negative:
-1 x -1225385-5 x -245077-7 x -175055-35 x -35011-157 x -7805-223 x -5495-785 x -1561-1099 x -1115
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 1,225,385, 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 | 1,225,385 | |
| -1 | -1,225,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,225,385.
Example:
1 x 1,225,385 = 1,225,385
and
-1 x -1,225,385 = 1,225,385
Notice both answers equal 1,225,385
With that explanation out of the way, let's continue. Next, we take the number 1,225,385 and divide it by 2:
1,225,385 ÷ 2 = 612,692.5
If the quotient is a whole number, then 2 and 612,692.5 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 | 1,225,385 | |
| -1 | -1,225,385 |
Now, we try dividing 1,225,385 by 3:
1,225,385 ÷ 3 = 408,461.6667
If the quotient is a whole number, then 3 and 408,461.6667 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 | 1,225,385 | |
| -1 | -1,225,385 |
Let's try dividing by 4:
1,225,385 ÷ 4 = 306,346.25
If the quotient is a whole number, then 4 and 306,346.25 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 | 1,225,385 | |
| -1 | 1,225,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 157 | 223 | 785 | 1,099 | 1,115 | 1,561 | 5,495 | 7,805 | 35,011 | 175,055 | 245,077 | 1,225,385 |
| -1 | -5 | -7 | -35 | -157 | -223 | -785 | -1,099 | -1,115 | -1,561 | -5,495 | -7,805 | -35,011 | -175,055 | -245,077 | -1,225,385 |
Here are some more numbers to try:
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