A:
Positive:
1 x 1637951913 x 125996323 x 71215329 x 564811299 x 54781377 x 43447667 x 245571889 x 8671
Negative:
-1 x -16379519-13 x -1259963-23 x -712153-29 x -564811-299 x -54781-377 x -43447-667 x -24557-1889 x -8671
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 16,379,519, 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 | 16,379,519 | |
| -1 | -16,379,519 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,379,519.
Example:
1 x 16,379,519 = 16,379,519
and
-1 x -16,379,519 = 16,379,519
Notice both answers equal 16,379,519
With that explanation out of the way, let's continue. Next, we take the number 16,379,519 and divide it by 2:
16,379,519 ÷ 2 = 8,189,759.5
If the quotient is a whole number, then 2 and 8,189,759.5 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 | 16,379,519 | |
| -1 | -16,379,519 |
Now, we try dividing 16,379,519 by 3:
16,379,519 ÷ 3 = 5,459,839.6667
If the quotient is a whole number, then 3 and 5,459,839.6667 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 | 16,379,519 | |
| -1 | -16,379,519 |
Let's try dividing by 4:
16,379,519 ÷ 4 = 4,094,879.75
If the quotient is a whole number, then 4 and 4,094,879.75 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 | 16,379,519 | |
| -1 | 16,379,519 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 29 | 299 | 377 | 667 | 1,889 | 8,671 | 24,557 | 43,447 | 54,781 | 564,811 | 712,153 | 1,259,963 | 16,379,519 |
| -1 | -13 | -23 | -29 | -299 | -377 | -667 | -1,889 | -8,671 | -24,557 | -43,447 | -54,781 | -564,811 | -712,153 | -1,259,963 | -16,379,519 |
Here are some more numbers to try:
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