A:
Positive:
1 x 672471255 x 1344942511 x 611337525 x 268988555 x 1222675125 x 537977275 x 2445351375 x 48907
Negative:
-1 x -67247125-5 x -13449425-11 x -6113375-25 x -2689885-55 x -1222675-125 x -537977-275 x -244535-1375 x -48907
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 67,247,125, 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 | 67,247,125 | |
| -1 | -67,247,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 67,247,125.
Example:
1 x 67,247,125 = 67,247,125
and
-1 x -67,247,125 = 67,247,125
Notice both answers equal 67,247,125
With that explanation out of the way, let's continue. Next, we take the number 67,247,125 and divide it by 2:
67,247,125 ÷ 2 = 33,623,562.5
If the quotient is a whole number, then 2 and 33,623,562.5 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 | 67,247,125 | |
| -1 | -67,247,125 |
Now, we try dividing 67,247,125 by 3:
67,247,125 ÷ 3 = 22,415,708.3333
If the quotient is a whole number, then 3 and 22,415,708.3333 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 | 67,247,125 | |
| -1 | -67,247,125 |
Let's try dividing by 4:
67,247,125 ÷ 4 = 16,811,781.25
If the quotient is a whole number, then 4 and 16,811,781.25 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 | 67,247,125 | |
| -1 | 67,247,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 125 | 275 | 1,375 | 48,907 | 244,535 | 537,977 | 1,222,675 | 2,689,885 | 6,113,375 | 13,449,425 | 67,247,125 |
| -1 | -5 | -11 | -25 | -55 | -125 | -275 | -1,375 | -48,907 | -244,535 | -537,977 | -1,222,675 | -2,689,885 | -6,113,375 | -13,449,425 | -67,247,125 |
Here are some more numbers to try:
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