A:
Positive:
1 x 167154055 x 33430817 x 238791535 x 47758353 x 315385265 x 63077371 x 450551855 x 9011
Negative:
-1 x -16715405-5 x -3343081-7 x -2387915-35 x -477583-53 x -315385-265 x -63077-371 x -45055-1855 x -9011
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 16,715,405, 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 | 16,715,405 | |
| -1 | -16,715,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,715,405.
Example:
1 x 16,715,405 = 16,715,405
and
-1 x -16,715,405 = 16,715,405
Notice both answers equal 16,715,405
With that explanation out of the way, let's continue. Next, we take the number 16,715,405 and divide it by 2:
16,715,405 ÷ 2 = 8,357,702.5
If the quotient is a whole number, then 2 and 8,357,702.5 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 | 16,715,405 | |
| -1 | -16,715,405 |
Now, we try dividing 16,715,405 by 3:
16,715,405 ÷ 3 = 5,571,801.6667
If the quotient is a whole number, then 3 and 5,571,801.6667 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 | 16,715,405 | |
| -1 | -16,715,405 |
Let's try dividing by 4:
16,715,405 ÷ 4 = 4,178,851.25
If the quotient is a whole number, then 4 and 4,178,851.25 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 | 16,715,405 | |
| -1 | 16,715,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 53 | 265 | 371 | 1,855 | 9,011 | 45,055 | 63,077 | 315,385 | 477,583 | 2,387,915 | 3,343,081 | 16,715,405 |
| -1 | -5 | -7 | -35 | -53 | -265 | -371 | -1,855 | -9,011 | -45,055 | -63,077 | -315,385 | -477,583 | -2,387,915 | -3,343,081 | -16,715,405 |
Here are some more numbers to try:
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