A:
Positive:
1 x 12894355 x 2578877 x 18420519 x 6786535 x 3684149 x 2631595 x 13573133 x 9695245 x 5263277 x 4655665 x 1939931 x 1385
Negative:
-1 x -1289435-5 x -257887-7 x -184205-19 x -67865-35 x -36841-49 x -26315-95 x -13573-133 x -9695-245 x -5263-277 x -4655-665 x -1939-931 x -1385
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 1,289,435, 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 | 1,289,435 | |
| -1 | -1,289,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,289,435.
Example:
1 x 1,289,435 = 1,289,435
and
-1 x -1,289,435 = 1,289,435
Notice both answers equal 1,289,435
With that explanation out of the way, let's continue. Next, we take the number 1,289,435 and divide it by 2:
1,289,435 ÷ 2 = 644,717.5
If the quotient is a whole number, then 2 and 644,717.5 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 | 1,289,435 | |
| -1 | -1,289,435 |
Now, we try dividing 1,289,435 by 3:
1,289,435 ÷ 3 = 429,811.6667
If the quotient is a whole number, then 3 and 429,811.6667 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 | 1,289,435 | |
| -1 | -1,289,435 |
Let's try dividing by 4:
1,289,435 ÷ 4 = 322,358.75
If the quotient is a whole number, then 4 and 322,358.75 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 | 1,289,435 | |
| -1 | 1,289,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 49 | 95 | 133 | 245 | 277 | 665 | 931 | 1,385 | 1,939 | 4,655 | 5,263 | 9,695 | 13,573 | 26,315 | 36,841 | 67,865 | 184,205 | 257,887 | 1,289,435 |
| -1 | -5 | -7 | -19 | -35 | -49 | -95 | -133 | -245 | -277 | -665 | -931 | -1,385 | -1,939 | -4,655 | -5,263 | -9,695 | -13,573 | -26,315 | -36,841 | -67,865 | -184,205 | -257,887 | -1,289,435 |
Here are some more numbers to try:
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