A:
Positive:
1 x 13001455 x 2600297 x 18573511 x 11819535 x 3714755 x 2363977 x 16885121 x 10745307 x 4235385 x 3377605 x 2149847 x 1535
Negative:
-1 x -1300145-5 x -260029-7 x -185735-11 x -118195-35 x -37147-55 x -23639-77 x -16885-121 x -10745-307 x -4235-385 x -3377-605 x -2149-847 x -1535
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 1,300,145, 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 | 1,300,145 | |
| -1 | -1,300,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,300,145.
Example:
1 x 1,300,145 = 1,300,145
and
-1 x -1,300,145 = 1,300,145
Notice both answers equal 1,300,145
With that explanation out of the way, let's continue. Next, we take the number 1,300,145 and divide it by 2:
1,300,145 ÷ 2 = 650,072.5
If the quotient is a whole number, then 2 and 650,072.5 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 | 1,300,145 | |
| -1 | -1,300,145 |
Now, we try dividing 1,300,145 by 3:
1,300,145 ÷ 3 = 433,381.6667
If the quotient is a whole number, then 3 and 433,381.6667 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 | 1,300,145 | |
| -1 | -1,300,145 |
Let's try dividing by 4:
1,300,145 ÷ 4 = 325,036.25
If the quotient is a whole number, then 4 and 325,036.25 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 | 1,300,145 | |
| -1 | 1,300,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 121 | 307 | 385 | 605 | 847 | 1,535 | 2,149 | 3,377 | 4,235 | 10,745 | 16,885 | 23,639 | 37,147 | 118,195 | 185,735 | 260,029 | 1,300,145 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -121 | -307 | -385 | -605 | -847 | -1,535 | -2,149 | -3,377 | -4,235 | -10,745 | -16,885 | -23,639 | -37,147 | -118,195 | -185,735 | -260,029 | -1,300,145 |
Here are some more numbers to try:
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