A:
Positive:
1 x 477809997 x 682585717 x 281064747 x 1016617119 x 401521329 x 145231799 x 598015593 x 8543
Negative:
-1 x -47780999-7 x -6825857-17 x -2810647-47 x -1016617-119 x -401521-329 x -145231-799 x -59801-5593 x -8543
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 47,780,999, 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 | 47,780,999 | |
| -1 | -47,780,999 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 47,780,999.
Example:
1 x 47,780,999 = 47,780,999
and
-1 x -47,780,999 = 47,780,999
Notice both answers equal 47,780,999
With that explanation out of the way, let's continue. Next, we take the number 47,780,999 and divide it by 2:
47,780,999 ÷ 2 = 23,890,499.5
If the quotient is a whole number, then 2 and 23,890,499.5 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 | 47,780,999 | |
| -1 | -47,780,999 |
Now, we try dividing 47,780,999 by 3:
47,780,999 ÷ 3 = 15,926,999.6667
If the quotient is a whole number, then 3 and 15,926,999.6667 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 | 47,780,999 | |
| -1 | -47,780,999 |
Let's try dividing by 4:
47,780,999 ÷ 4 = 11,945,249.75
If the quotient is a whole number, then 4 and 11,945,249.75 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 | 47,780,999 | |
| -1 | 47,780,999 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 47 | 119 | 329 | 799 | 5,593 | 8,543 | 59,801 | 145,231 | 401,521 | 1,016,617 | 2,810,647 | 6,825,857 | 47,780,999 |
| -1 | -7 | -17 | -47 | -119 | -329 | -799 | -5,593 | -8,543 | -59,801 | -145,231 | -401,521 | -1,016,617 | -2,810,647 | -6,825,857 | -47,780,999 |
Here are some more numbers to try:
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