A:
Positive:
1 x 475314055 x 950628117 x 279596585 x 559193461 x 1031051213 x 391852305 x 206216065 x 7837
Negative:
-1 x -47531405-5 x -9506281-17 x -2795965-85 x -559193-461 x -103105-1213 x -39185-2305 x -20621-6065 x -7837
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 47,531,405, 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 | 47,531,405 | |
| -1 | -47,531,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 47,531,405.
Example:
1 x 47,531,405 = 47,531,405
and
-1 x -47,531,405 = 47,531,405
Notice both answers equal 47,531,405
With that explanation out of the way, let's continue. Next, we take the number 47,531,405 and divide it by 2:
47,531,405 ÷ 2 = 23,765,702.5
If the quotient is a whole number, then 2 and 23,765,702.5 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 | 47,531,405 | |
| -1 | -47,531,405 |
Now, we try dividing 47,531,405 by 3:
47,531,405 ÷ 3 = 15,843,801.6667
If the quotient is a whole number, then 3 and 15,843,801.6667 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 | 47,531,405 | |
| -1 | -47,531,405 |
Let's try dividing by 4:
47,531,405 ÷ 4 = 11,882,851.25
If the quotient is a whole number, then 4 and 11,882,851.25 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 | 47,531,405 | |
| -1 | 47,531,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 461 | 1,213 | 2,305 | 6,065 | 7,837 | 20,621 | 39,185 | 103,105 | 559,193 | 2,795,965 | 9,506,281 | 47,531,405 |
| -1 | -5 | -17 | -85 | -461 | -1,213 | -2,305 | -6,065 | -7,837 | -20,621 | -39,185 | -103,105 | -559,193 | -2,795,965 | -9,506,281 | -47,531,405 |
Here are some more numbers to try:
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