A:
Positive:
1 x 396797177 x 566853111 x 360724717 x 233410177 x 515321119 x 333443187 x 2121911309 x 30313
Negative:
-1 x -39679717-7 x -5668531-11 x -3607247-17 x -2334101-77 x -515321-119 x -333443-187 x -212191-1309 x -30313
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 39,679,717, 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 | 39,679,717 | |
| -1 | -39,679,717 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,679,717.
Example:
1 x 39,679,717 = 39,679,717
and
-1 x -39,679,717 = 39,679,717
Notice both answers equal 39,679,717
With that explanation out of the way, let's continue. Next, we take the number 39,679,717 and divide it by 2:
39,679,717 ÷ 2 = 19,839,858.5
If the quotient is a whole number, then 2 and 19,839,858.5 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 | 39,679,717 | |
| -1 | -39,679,717 |
Now, we try dividing 39,679,717 by 3:
39,679,717 ÷ 3 = 13,226,572.3333
If the quotient is a whole number, then 3 and 13,226,572.3333 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 | 39,679,717 | |
| -1 | -39,679,717 |
Let's try dividing by 4:
39,679,717 ÷ 4 = 9,919,929.25
If the quotient is a whole number, then 4 and 9,919,929.25 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 | 39,679,717 | |
| -1 | 39,679,717 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 17 | 77 | 119 | 187 | 1,309 | 30,313 | 212,191 | 333,443 | 515,321 | 2,334,101 | 3,607,247 | 5,668,531 | 39,679,717 |
| -1 | -7 | -11 | -17 | -77 | -119 | -187 | -1,309 | -30,313 | -212,191 | -333,443 | -515,321 | -2,334,101 | -3,607,247 | -5,668,531 | -39,679,717 |
Here are some more numbers to try:
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