A:
Positive:
1 x 272456177 x 389223143 x 63361949 x 55603367 x 406651193 x 141169301 x 90517469 x 580931351 x 201672107 x 129312881 x 94573283 x 8299
Negative:
-1 x -27245617-7 x -3892231-43 x -633619-49 x -556033-67 x -406651-193 x -141169-301 x -90517-469 x -58093-1351 x -20167-2107 x -12931-2881 x -9457-3283 x -8299
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 27,245,617, 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 | 27,245,617 | |
| -1 | -27,245,617 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,245,617.
Example:
1 x 27,245,617 = 27,245,617
and
-1 x -27,245,617 = 27,245,617
Notice both answers equal 27,245,617
With that explanation out of the way, let's continue. Next, we take the number 27,245,617 and divide it by 2:
27,245,617 ÷ 2 = 13,622,808.5
If the quotient is a whole number, then 2 and 13,622,808.5 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 | 27,245,617 | |
| -1 | -27,245,617 |
Now, we try dividing 27,245,617 by 3:
27,245,617 ÷ 3 = 9,081,872.3333
If the quotient is a whole number, then 3 and 9,081,872.3333 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 | 27,245,617 | |
| -1 | -27,245,617 |
Let's try dividing by 4:
27,245,617 ÷ 4 = 6,811,404.25
If the quotient is a whole number, then 4 and 6,811,404.25 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 | 27,245,617 | |
| -1 | 27,245,617 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 49 | 67 | 193 | 301 | 469 | 1,351 | 2,107 | 2,881 | 3,283 | 8,299 | 9,457 | 12,931 | 20,167 | 58,093 | 90,517 | 141,169 | 406,651 | 556,033 | 633,619 | 3,892,231 | 27,245,617 |
| -1 | -7 | -43 | -49 | -67 | -193 | -301 | -469 | -1,351 | -2,107 | -2,881 | -3,283 | -8,299 | -9,457 | -12,931 | -20,167 | -58,093 | -90,517 | -141,169 | -406,651 | -556,033 | -633,619 | -3,892,231 | -27,245,617 |
Here are some more numbers to try:
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