A:
Positive:
1 x 69188155 x 138376337 x 186995149 x 46435185 x 37399251 x 27565745 x 92871255 x 5513
Negative:
-1 x -6918815-5 x -1383763-37 x -186995-149 x -46435-185 x -37399-251 x -27565-745 x -9287-1255 x -5513
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 6,918,815, 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 | 6,918,815 | |
| -1 | -6,918,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,918,815.
Example:
1 x 6,918,815 = 6,918,815
and
-1 x -6,918,815 = 6,918,815
Notice both answers equal 6,918,815
With that explanation out of the way, let's continue. Next, we take the number 6,918,815 and divide it by 2:
6,918,815 ÷ 2 = 3,459,407.5
If the quotient is a whole number, then 2 and 3,459,407.5 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 | 6,918,815 | |
| -1 | -6,918,815 |
Now, we try dividing 6,918,815 by 3:
6,918,815 ÷ 3 = 2,306,271.6667
If the quotient is a whole number, then 3 and 2,306,271.6667 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 | 6,918,815 | |
| -1 | -6,918,815 |
Let's try dividing by 4:
6,918,815 ÷ 4 = 1,729,703.75
If the quotient is a whole number, then 4 and 1,729,703.75 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 | 6,918,815 | |
| -1 | 6,918,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 149 | 185 | 251 | 745 | 1,255 | 5,513 | 9,287 | 27,565 | 37,399 | 46,435 | 186,995 | 1,383,763 | 6,918,815 |
| -1 | -5 | -37 | -149 | -185 | -251 | -745 | -1,255 | -5,513 | -9,287 | -27,565 | -37,399 | -46,435 | -186,995 | -1,383,763 | -6,918,815 |
Here are some more numbers to try:
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