A:
Positive:
1 x 167638877 x 239484117 x 986111119 x 140873179 x 93653787 x 213011253 x 133793043 x 5509
Negative:
-1 x -16763887-7 x -2394841-17 x -986111-119 x -140873-179 x -93653-787 x -21301-1253 x -13379-3043 x -5509
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 16,763,887, 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 | 16,763,887 | |
| -1 | -16,763,887 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,763,887.
Example:
1 x 16,763,887 = 16,763,887
and
-1 x -16,763,887 = 16,763,887
Notice both answers equal 16,763,887
With that explanation out of the way, let's continue. Next, we take the number 16,763,887 and divide it by 2:
16,763,887 ÷ 2 = 8,381,943.5
If the quotient is a whole number, then 2 and 8,381,943.5 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 | 16,763,887 | |
| -1 | -16,763,887 |
Now, we try dividing 16,763,887 by 3:
16,763,887 ÷ 3 = 5,587,962.3333
If the quotient is a whole number, then 3 and 5,587,962.3333 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 | 16,763,887 | |
| -1 | -16,763,887 |
Let's try dividing by 4:
16,763,887 ÷ 4 = 4,190,971.75
If the quotient is a whole number, then 4 and 4,190,971.75 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 | 16,763,887 | |
| -1 | 16,763,887 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 179 | 787 | 1,253 | 3,043 | 5,509 | 13,379 | 21,301 | 93,653 | 140,873 | 986,111 | 2,394,841 | 16,763,887 |
| -1 | -7 | -17 | -119 | -179 | -787 | -1,253 | -3,043 | -5,509 | -13,379 | -21,301 | -93,653 | -140,873 | -986,111 | -2,394,841 | -16,763,887 |
Here are some more numbers to try:
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