A:
Positive:
1 x 79082717 x 112975329 x 272699163 x 48517203 x 38957239 x 330891141 x 69311673 x 4727
Negative:
-1 x -7908271-7 x -1129753-29 x -272699-163 x -48517-203 x -38957-239 x -33089-1141 x -6931-1673 x -4727
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 7,908,271, 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 | 7,908,271 | |
| -1 | -7,908,271 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,908,271.
Example:
1 x 7,908,271 = 7,908,271
and
-1 x -7,908,271 = 7,908,271
Notice both answers equal 7,908,271
With that explanation out of the way, let's continue. Next, we take the number 7,908,271 and divide it by 2:
7,908,271 ÷ 2 = 3,954,135.5
If the quotient is a whole number, then 2 and 3,954,135.5 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 | 7,908,271 | |
| -1 | -7,908,271 |
Now, we try dividing 7,908,271 by 3:
7,908,271 ÷ 3 = 2,636,090.3333
If the quotient is a whole number, then 3 and 2,636,090.3333 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 | 7,908,271 | |
| -1 | -7,908,271 |
Let's try dividing by 4:
7,908,271 ÷ 4 = 1,977,067.75
If the quotient is a whole number, then 4 and 1,977,067.75 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 | 7,908,271 | |
| -1 | 7,908,271 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 163 | 203 | 239 | 1,141 | 1,673 | 4,727 | 6,931 | 33,089 | 38,957 | 48,517 | 272,699 | 1,129,753 | 7,908,271 |
| -1 | -7 | -29 | -163 | -203 | -239 | -1,141 | -1,673 | -4,727 | -6,931 | -33,089 | -38,957 | -48,517 | -272,699 | -1,129,753 | -7,908,271 |
Here are some more numbers to try:
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