A:
Positive:
1 x 188752277 x 269646119 x 993433133 x 141919139 x 135793973 x 193991021 x 184872641 x 7147
Negative:
-1 x -18875227-7 x -2696461-19 x -993433-133 x -141919-139 x -135793-973 x -19399-1021 x -18487-2641 x -7147
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 18,875,227, 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 | 18,875,227 | |
| -1 | -18,875,227 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,875,227.
Example:
1 x 18,875,227 = 18,875,227
and
-1 x -18,875,227 = 18,875,227
Notice both answers equal 18,875,227
With that explanation out of the way, let's continue. Next, we take the number 18,875,227 and divide it by 2:
18,875,227 ÷ 2 = 9,437,613.5
If the quotient is a whole number, then 2 and 9,437,613.5 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 | 18,875,227 | |
| -1 | -18,875,227 |
Now, we try dividing 18,875,227 by 3:
18,875,227 ÷ 3 = 6,291,742.3333
If the quotient is a whole number, then 3 and 6,291,742.3333 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 | 18,875,227 | |
| -1 | -18,875,227 |
Let's try dividing by 4:
18,875,227 ÷ 4 = 4,718,806.75
If the quotient is a whole number, then 4 and 4,718,806.75 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 | 18,875,227 | |
| -1 | 18,875,227 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 139 | 973 | 1,021 | 2,641 | 7,147 | 18,487 | 19,399 | 135,793 | 141,919 | 993,433 | 2,696,461 | 18,875,227 |
| -1 | -7 | -19 | -133 | -139 | -973 | -1,021 | -2,641 | -7,147 | -18,487 | -19,399 | -135,793 | -141,919 | -993,433 | -2,696,461 | -18,875,227 |
Here are some more numbers to try:
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