A:
Positive:
1 x 167803517 x 239719337 x 45352367 x 250453259 x 64789469 x 35779967 x 173532479 x 6769
Negative:
-1 x -16780351-7 x -2397193-37 x -453523-67 x -250453-259 x -64789-469 x -35779-967 x -17353-2479 x -6769
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 16,780,351, 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 | 16,780,351 | |
| -1 | -16,780,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,780,351.
Example:
1 x 16,780,351 = 16,780,351
and
-1 x -16,780,351 = 16,780,351
Notice both answers equal 16,780,351
With that explanation out of the way, let's continue. Next, we take the number 16,780,351 and divide it by 2:
16,780,351 ÷ 2 = 8,390,175.5
If the quotient is a whole number, then 2 and 8,390,175.5 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 | 16,780,351 | |
| -1 | -16,780,351 |
Now, we try dividing 16,780,351 by 3:
16,780,351 ÷ 3 = 5,593,450.3333
If the quotient is a whole number, then 3 and 5,593,450.3333 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 | 16,780,351 | |
| -1 | -16,780,351 |
Let's try dividing by 4:
16,780,351 ÷ 4 = 4,195,087.75
If the quotient is a whole number, then 4 and 4,195,087.75 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 | 16,780,351 | |
| -1 | 16,780,351 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 67 | 259 | 469 | 967 | 2,479 | 6,769 | 17,353 | 35,779 | 64,789 | 250,453 | 453,523 | 2,397,193 | 16,780,351 |
| -1 | -7 | -37 | -67 | -259 | -469 | -967 | -2,479 | -6,769 | -17,353 | -35,779 | -64,789 | -250,453 | -453,523 | -2,397,193 | -16,780,351 |
Here are some more numbers to try:
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