A:
Positive:
1 x 474877155 x 949754311 x 431706517 x 279339555 x 86341385 x 558679187 x 253945935 x 50789
Negative:
-1 x -47487715-5 x -9497543-11 x -4317065-17 x -2793395-55 x -863413-85 x -558679-187 x -253945-935 x -50789
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 47,487,715, 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 | 47,487,715 | |
| -1 | -47,487,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 47,487,715.
Example:
1 x 47,487,715 = 47,487,715
and
-1 x -47,487,715 = 47,487,715
Notice both answers equal 47,487,715
With that explanation out of the way, let's continue. Next, we take the number 47,487,715 and divide it by 2:
47,487,715 ÷ 2 = 23,743,857.5
If the quotient is a whole number, then 2 and 23,743,857.5 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 | 47,487,715 | |
| -1 | -47,487,715 |
Now, we try dividing 47,487,715 by 3:
47,487,715 ÷ 3 = 15,829,238.3333
If the quotient is a whole number, then 3 and 15,829,238.3333 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 | 47,487,715 | |
| -1 | -47,487,715 |
Let's try dividing by 4:
47,487,715 ÷ 4 = 11,871,928.75
If the quotient is a whole number, then 4 and 11,871,928.75 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 | 47,487,715 | |
| -1 | 47,487,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 50,789 | 253,945 | 558,679 | 863,413 | 2,793,395 | 4,317,065 | 9,497,543 | 47,487,715 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -50,789 | -253,945 | -558,679 | -863,413 | -2,793,395 | -4,317,065 | -9,497,543 | -47,487,715 |
Here are some more numbers to try:
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