A:
Positive:
1 x 687621055 x 13752421109 x 630845281 x 244705449 x 153145545 x 1261691405 x 489412245 x 30629
Negative:
-1 x -68762105-5 x -13752421-109 x -630845-281 x -244705-449 x -153145-545 x -126169-1405 x -48941-2245 x -30629
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 68,762,105, 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 | 68,762,105 | |
| -1 | -68,762,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,762,105.
Example:
1 x 68,762,105 = 68,762,105
and
-1 x -68,762,105 = 68,762,105
Notice both answers equal 68,762,105
With that explanation out of the way, let's continue. Next, we take the number 68,762,105 and divide it by 2:
68,762,105 ÷ 2 = 34,381,052.5
If the quotient is a whole number, then 2 and 34,381,052.5 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 | 68,762,105 | |
| -1 | -68,762,105 |
Now, we try dividing 68,762,105 by 3:
68,762,105 ÷ 3 = 22,920,701.6667
If the quotient is a whole number, then 3 and 22,920,701.6667 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 | 68,762,105 | |
| -1 | -68,762,105 |
Let's try dividing by 4:
68,762,105 ÷ 4 = 17,190,526.25
If the quotient is a whole number, then 4 and 17,190,526.25 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 | 68,762,105 | |
| -1 | 68,762,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 109 | 281 | 449 | 545 | 1,405 | 2,245 | 30,629 | 48,941 | 126,169 | 153,145 | 244,705 | 630,845 | 13,752,421 | 68,762,105 |
| -1 | -5 | -109 | -281 | -449 | -545 | -1,405 | -2,245 | -30,629 | -48,941 | -126,169 | -153,145 | -244,705 | -630,845 | -13,752,421 | -68,762,105 |
Here are some more numbers to try:
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