A:
Positive:
1 x 6807753711 x 618886717 x 400456173 x 932569187 x 364051803 x 847791241 x 548574987 x 13651
Negative:
-1 x -68077537-11 x -6188867-17 x -4004561-73 x -932569-187 x -364051-803 x -84779-1241 x -54857-4987 x -13651
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 68,077,537, 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 | 68,077,537 | |
| -1 | -68,077,537 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,077,537.
Example:
1 x 68,077,537 = 68,077,537
and
-1 x -68,077,537 = 68,077,537
Notice both answers equal 68,077,537
With that explanation out of the way, let's continue. Next, we take the number 68,077,537 and divide it by 2:
68,077,537 ÷ 2 = 34,038,768.5
If the quotient is a whole number, then 2 and 34,038,768.5 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 | 68,077,537 | |
| -1 | -68,077,537 |
Now, we try dividing 68,077,537 by 3:
68,077,537 ÷ 3 = 22,692,512.3333
If the quotient is a whole number, then 3 and 22,692,512.3333 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 | 68,077,537 | |
| -1 | -68,077,537 |
Let's try dividing by 4:
68,077,537 ÷ 4 = 17,019,384.25
If the quotient is a whole number, then 4 and 17,019,384.25 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 | 68,077,537 | |
| -1 | 68,077,537 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 73 | 187 | 803 | 1,241 | 4,987 | 13,651 | 54,857 | 84,779 | 364,051 | 932,569 | 4,004,561 | 6,188,867 | 68,077,537 |
| -1 | -11 | -17 | -73 | -187 | -803 | -1,241 | -4,987 | -13,651 | -54,857 | -84,779 | -364,051 | -932,569 | -4,004,561 | -6,188,867 | -68,077,537 |
Here are some more numbers to try:
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