A:
Positive:
1 x 165913517 x 237019319 x 87322949 x 33859971 x 233681133 x 124747251 x 66101497 x 33383931 x 178211349 x 122991757 x 94433479 x 4769
Negative:
-1 x -16591351-7 x -2370193-19 x -873229-49 x -338599-71 x -233681-133 x -124747-251 x -66101-497 x -33383-931 x -17821-1349 x -12299-1757 x -9443-3479 x -4769
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 16,591,351, 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 | 16,591,351 | |
| -1 | -16,591,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,591,351.
Example:
1 x 16,591,351 = 16,591,351
and
-1 x -16,591,351 = 16,591,351
Notice both answers equal 16,591,351
With that explanation out of the way, let's continue. Next, we take the number 16,591,351 and divide it by 2:
16,591,351 ÷ 2 = 8,295,675.5
If the quotient is a whole number, then 2 and 8,295,675.5 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 | 16,591,351 | |
| -1 | -16,591,351 |
Now, we try dividing 16,591,351 by 3:
16,591,351 ÷ 3 = 5,530,450.3333
If the quotient is a whole number, then 3 and 5,530,450.3333 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 | 16,591,351 | |
| -1 | -16,591,351 |
Let's try dividing by 4:
16,591,351 ÷ 4 = 4,147,837.75
If the quotient is a whole number, then 4 and 4,147,837.75 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 | 16,591,351 | |
| -1 | 16,591,351 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 49 | 71 | 133 | 251 | 497 | 931 | 1,349 | 1,757 | 3,479 | 4,769 | 9,443 | 12,299 | 17,821 | 33,383 | 66,101 | 124,747 | 233,681 | 338,599 | 873,229 | 2,370,193 | 16,591,351 |
| -1 | -7 | -19 | -49 | -71 | -133 | -251 | -497 | -931 | -1,349 | -1,757 | -3,479 | -4,769 | -9,443 | -12,299 | -17,821 | -33,383 | -66,101 | -124,747 | -233,681 | -338,599 | -873,229 | -2,370,193 | -16,591,351 |
Here are some more numbers to try:
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