A:
Positive:
1 x 81666137 x 116665913 x 62820117 x 48038991 x 89743119 x 68627221 x 369531547 x 5279
Negative:
-1 x -8166613-7 x -1166659-13 x -628201-17 x -480389-91 x -89743-119 x -68627-221 x -36953-1547 x -5279
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 8,166,613, 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 | 8,166,613 | |
| -1 | -8,166,613 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,166,613.
Example:
1 x 8,166,613 = 8,166,613
and
-1 x -8,166,613 = 8,166,613
Notice both answers equal 8,166,613
With that explanation out of the way, let's continue. Next, we take the number 8,166,613 and divide it by 2:
8,166,613 ÷ 2 = 4,083,306.5
If the quotient is a whole number, then 2 and 4,083,306.5 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 | 8,166,613 | |
| -1 | -8,166,613 |
Now, we try dividing 8,166,613 by 3:
8,166,613 ÷ 3 = 2,722,204.3333
If the quotient is a whole number, then 3 and 2,722,204.3333 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 | 8,166,613 | |
| -1 | -8,166,613 |
Let's try dividing by 4:
8,166,613 ÷ 4 = 2,041,653.25
If the quotient is a whole number, then 4 and 2,041,653.25 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 | 8,166,613 | |
| -1 | 8,166,613 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 91 | 119 | 221 | 1,547 | 5,279 | 36,953 | 68,627 | 89,743 | 480,389 | 628,201 | 1,166,659 | 8,166,613 |
| -1 | -7 | -13 | -17 | -91 | -119 | -221 | -1,547 | -5,279 | -36,953 | -68,627 | -89,743 | -480,389 | -628,201 | -1,166,659 | -8,166,613 |
Here are some more numbers to try:
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