A:
Positive:
1 x 478807155 x 957614343 x 111350579 x 606085215 x 222701395 x 1212172819 x 169853397 x 14095
Negative:
-1 x -47880715-5 x -9576143-43 x -1113505-79 x -606085-215 x -222701-395 x -121217-2819 x -16985-3397 x -14095
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 47,880,715, 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 | 47,880,715 | |
| -1 | -47,880,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 47,880,715.
Example:
1 x 47,880,715 = 47,880,715
and
-1 x -47,880,715 = 47,880,715
Notice both answers equal 47,880,715
With that explanation out of the way, let's continue. Next, we take the number 47,880,715 and divide it by 2:
47,880,715 ÷ 2 = 23,940,357.5
If the quotient is a whole number, then 2 and 23,940,357.5 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 | 47,880,715 | |
| -1 | -47,880,715 |
Now, we try dividing 47,880,715 by 3:
47,880,715 ÷ 3 = 15,960,238.3333
If the quotient is a whole number, then 3 and 15,960,238.3333 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 | 47,880,715 | |
| -1 | -47,880,715 |
Let's try dividing by 4:
47,880,715 ÷ 4 = 11,970,178.75
If the quotient is a whole number, then 4 and 11,970,178.75 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 | 47,880,715 | |
| -1 | 47,880,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 79 | 215 | 395 | 2,819 | 3,397 | 14,095 | 16,985 | 121,217 | 222,701 | 606,085 | 1,113,505 | 9,576,143 | 47,880,715 |
| -1 | -5 | -43 | -79 | -215 | -395 | -2,819 | -3,397 | -14,095 | -16,985 | -121,217 | -222,701 | -606,085 | -1,113,505 | -9,576,143 | -47,880,715 |
Here are some more numbers to try:
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