A:
Positive:
1 x 12892255 x 2578457 x 18417525 x 5156935 x 3683553 x 24325139 x 9275175 x 7367265 x 4865371 x 3475695 x 1855973 x 1325
Negative:
-1 x -1289225-5 x -257845-7 x -184175-25 x -51569-35 x -36835-53 x -24325-139 x -9275-175 x -7367-265 x -4865-371 x -3475-695 x -1855-973 x -1325
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 1,289,225, 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 | 1,289,225 | |
| -1 | -1,289,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,289,225.
Example:
1 x 1,289,225 = 1,289,225
and
-1 x -1,289,225 = 1,289,225
Notice both answers equal 1,289,225
With that explanation out of the way, let's continue. Next, we take the number 1,289,225 and divide it by 2:
1,289,225 ÷ 2 = 644,612.5
If the quotient is a whole number, then 2 and 644,612.5 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 | 1,289,225 | |
| -1 | -1,289,225 |
Now, we try dividing 1,289,225 by 3:
1,289,225 ÷ 3 = 429,741.6667
If the quotient is a whole number, then 3 and 429,741.6667 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 | 1,289,225 | |
| -1 | -1,289,225 |
Let's try dividing by 4:
1,289,225 ÷ 4 = 322,306.25
If the quotient is a whole number, then 4 and 322,306.25 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 | 1,289,225 | |
| -1 | 1,289,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 53 | 139 | 175 | 265 | 371 | 695 | 973 | 1,325 | 1,855 | 3,475 | 4,865 | 7,367 | 9,275 | 24,325 | 36,835 | 51,569 | 184,175 | 257,845 | 1,289,225 |
| -1 | -5 | -7 | -25 | -35 | -53 | -139 | -175 | -265 | -371 | -695 | -973 | -1,325 | -1,855 | -3,475 | -4,865 | -7,367 | -9,275 | -24,325 | -36,835 | -51,569 | -184,175 | -257,845 | -1,289,225 |
Here are some more numbers to try:
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