A:
Positive:
1 x 12356055 x 2471217 x 17651535 x 3530343 x 28735215 x 5747301 x 4105821 x 1505
Negative:
-1 x -1235605-5 x -247121-7 x -176515-35 x -35303-43 x -28735-215 x -5747-301 x -4105-821 x -1505
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 1,235,605, 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 | 1,235,605 | |
| -1 | -1,235,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,235,605.
Example:
1 x 1,235,605 = 1,235,605
and
-1 x -1,235,605 = 1,235,605
Notice both answers equal 1,235,605
With that explanation out of the way, let's continue. Next, we take the number 1,235,605 and divide it by 2:
1,235,605 ÷ 2 = 617,802.5
If the quotient is a whole number, then 2 and 617,802.5 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 | 1,235,605 | |
| -1 | -1,235,605 |
Now, we try dividing 1,235,605 by 3:
1,235,605 ÷ 3 = 411,868.3333
If the quotient is a whole number, then 3 and 411,868.3333 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 | 1,235,605 | |
| -1 | -1,235,605 |
Let's try dividing by 4:
1,235,605 ÷ 4 = 308,901.25
If the quotient is a whole number, then 4 and 308,901.25 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 | 1,235,605 | |
| -1 | 1,235,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 43 | 215 | 301 | 821 | 1,505 | 4,105 | 5,747 | 28,735 | 35,303 | 176,515 | 247,121 | 1,235,605 |
| -1 | -5 | -7 | -35 | -43 | -215 | -301 | -821 | -1,505 | -4,105 | -5,747 | -28,735 | -35,303 | -176,515 | -247,121 | -1,235,605 |
Here are some more numbers to try:
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