A:
Positive:
1 x 81195177 x 115993119 x 42734341 x 198037133 x 61049287 x 28291779 x 104231489 x 5453
Negative:
-1 x -8119517-7 x -1159931-19 x -427343-41 x -198037-133 x -61049-287 x -28291-779 x -10423-1489 x -5453
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 8,119,517, 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 | 8,119,517 | |
| -1 | -8,119,517 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,119,517.
Example:
1 x 8,119,517 = 8,119,517
and
-1 x -8,119,517 = 8,119,517
Notice both answers equal 8,119,517
With that explanation out of the way, let's continue. Next, we take the number 8,119,517 and divide it by 2:
8,119,517 ÷ 2 = 4,059,758.5
If the quotient is a whole number, then 2 and 4,059,758.5 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 | 8,119,517 | |
| -1 | -8,119,517 |
Now, we try dividing 8,119,517 by 3:
8,119,517 ÷ 3 = 2,706,505.6667
If the quotient is a whole number, then 3 and 2,706,505.6667 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 | 8,119,517 | |
| -1 | -8,119,517 |
Let's try dividing by 4:
8,119,517 ÷ 4 = 2,029,879.25
If the quotient is a whole number, then 4 and 2,029,879.25 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 | 8,119,517 | |
| -1 | 8,119,517 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 41 | 133 | 287 | 779 | 1,489 | 5,453 | 10,423 | 28,291 | 61,049 | 198,037 | 427,343 | 1,159,931 | 8,119,517 |
| -1 | -7 | -19 | -41 | -133 | -287 | -779 | -1,489 | -5,453 | -10,423 | -28,291 | -61,049 | -198,037 | -427,343 | -1,159,931 | -8,119,517 |
Here are some more numbers to try:
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