A:
Positive:
1 x 6864960713 x 528073967 x 1024621269 x 255203293 x 234299871 x 788173497 x 196313809 x 18023
Negative:
-1 x -68649607-13 x -5280739-67 x -1024621-269 x -255203-293 x -234299-871 x -78817-3497 x -19631-3809 x -18023
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 68,649,607, 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 | 68,649,607 | |
| -1 | -68,649,607 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,649,607.
Example:
1 x 68,649,607 = 68,649,607
and
-1 x -68,649,607 = 68,649,607
Notice both answers equal 68,649,607
With that explanation out of the way, let's continue. Next, we take the number 68,649,607 and divide it by 2:
68,649,607 ÷ 2 = 34,324,803.5
If the quotient is a whole number, then 2 and 34,324,803.5 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 | 68,649,607 | |
| -1 | -68,649,607 |
Now, we try dividing 68,649,607 by 3:
68,649,607 ÷ 3 = 22,883,202.3333
If the quotient is a whole number, then 3 and 22,883,202.3333 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 | 68,649,607 | |
| -1 | -68,649,607 |
Let's try dividing by 4:
68,649,607 ÷ 4 = 17,162,401.75
If the quotient is a whole number, then 4 and 17,162,401.75 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 | 68,649,607 | |
| -1 | 68,649,607 |
If you did it right, you will end up with this table:
| 1 | 13 | 67 | 269 | 293 | 871 | 3,497 | 3,809 | 18,023 | 19,631 | 78,817 | 234,299 | 255,203 | 1,024,621 | 5,280,739 | 68,649,607 |
| -1 | -13 | -67 | -269 | -293 | -871 | -3,497 | -3,809 | -18,023 | -19,631 | -78,817 | -234,299 | -255,203 | -1,024,621 | -5,280,739 | -68,649,607 |
Here are some more numbers to try:
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