A:
Positive:
1 x 6885754711 x 625977753 x 129919983 x 829609583 x 118109913 x 754191423 x 483894399 x 15653
Negative:
-1 x -68857547-11 x -6259777-53 x -1299199-83 x -829609-583 x -118109-913 x -75419-1423 x -48389-4399 x -15653
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 68,857,547, 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 | 68,857,547 | |
| -1 | -68,857,547 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,857,547.
Example:
1 x 68,857,547 = 68,857,547
and
-1 x -68,857,547 = 68,857,547
Notice both answers equal 68,857,547
With that explanation out of the way, let's continue. Next, we take the number 68,857,547 and divide it by 2:
68,857,547 ÷ 2 = 34,428,773.5
If the quotient is a whole number, then 2 and 34,428,773.5 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 | 68,857,547 | |
| -1 | -68,857,547 |
Now, we try dividing 68,857,547 by 3:
68,857,547 ÷ 3 = 22,952,515.6667
If the quotient is a whole number, then 3 and 22,952,515.6667 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 | 68,857,547 | |
| -1 | -68,857,547 |
Let's try dividing by 4:
68,857,547 ÷ 4 = 17,214,386.75
If the quotient is a whole number, then 4 and 17,214,386.75 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 | 68,857,547 | |
| -1 | 68,857,547 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 83 | 583 | 913 | 1,423 | 4,399 | 15,653 | 48,389 | 75,419 | 118,109 | 829,609 | 1,299,199 | 6,259,777 | 68,857,547 |
| -1 | -11 | -53 | -83 | -583 | -913 | -1,423 | -4,399 | -15,653 | -48,389 | -75,419 | -118,109 | -829,609 | -1,299,199 | -6,259,777 | -68,857,547 |
Here are some more numbers to try:
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