A:
Positive:
1 x 68771455 x 137542911 x 62519519 x 36195555 x 12503995 x 72391209 x 329051045 x 6581
Negative:
-1 x -6877145-5 x -1375429-11 x -625195-19 x -361955-55 x -125039-95 x -72391-209 x -32905-1045 x -6581
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 6,877,145, 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 | 6,877,145 | |
| -1 | -6,877,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,877,145.
Example:
1 x 6,877,145 = 6,877,145
and
-1 x -6,877,145 = 6,877,145
Notice both answers equal 6,877,145
With that explanation out of the way, let's continue. Next, we take the number 6,877,145 and divide it by 2:
6,877,145 ÷ 2 = 3,438,572.5
If the quotient is a whole number, then 2 and 3,438,572.5 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 | 6,877,145 | |
| -1 | -6,877,145 |
Now, we try dividing 6,877,145 by 3:
6,877,145 ÷ 3 = 2,292,381.6667
If the quotient is a whole number, then 3 and 2,292,381.6667 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 | 6,877,145 | |
| -1 | -6,877,145 |
Let's try dividing by 4:
6,877,145 ÷ 4 = 1,719,286.25
If the quotient is a whole number, then 4 and 1,719,286.25 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 | 6,877,145 | |
| -1 | 6,877,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 209 | 1,045 | 6,581 | 32,905 | 72,391 | 125,039 | 361,955 | 625,195 | 1,375,429 | 6,877,145 |
| -1 | -5 | -11 | -19 | -55 | -95 | -209 | -1,045 | -6,581 | -32,905 | -72,391 | -125,039 | -361,955 | -625,195 | -1,375,429 | -6,877,145 |
Here are some more numbers to try:
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