A:
Positive:
1 x 2035435143 x 47335759 x 34498971 x 286681113 x 1801272537 x 80233053 x 66674189 x 4859
Negative:
-1 x -20354351-43 x -473357-59 x -344989-71 x -286681-113 x -180127-2537 x -8023-3053 x -6667-4189 x -4859
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 20,354,351, 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 | 20,354,351 | |
| -1 | -20,354,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,354,351.
Example:
1 x 20,354,351 = 20,354,351
and
-1 x -20,354,351 = 20,354,351
Notice both answers equal 20,354,351
With that explanation out of the way, let's continue. Next, we take the number 20,354,351 and divide it by 2:
20,354,351 ÷ 2 = 10,177,175.5
If the quotient is a whole number, then 2 and 10,177,175.5 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 | 20,354,351 | |
| -1 | -20,354,351 |
Now, we try dividing 20,354,351 by 3:
20,354,351 ÷ 3 = 6,784,783.6667
If the quotient is a whole number, then 3 and 6,784,783.6667 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 | 20,354,351 | |
| -1 | -20,354,351 |
Let's try dividing by 4:
20,354,351 ÷ 4 = 5,088,587.75
If the quotient is a whole number, then 4 and 5,088,587.75 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 | 20,354,351 | |
| -1 | 20,354,351 |
If you did it right, you will end up with this table:
| 1 | 43 | 59 | 71 | 113 | 2,537 | 3,053 | 4,189 | 4,859 | 6,667 | 8,023 | 180,127 | 286,681 | 344,989 | 473,357 | 20,354,351 |
| -1 | -43 | -59 | -71 | -113 | -2,537 | -3,053 | -4,189 | -4,859 | -6,667 | -8,023 | -180,127 | -286,681 | -344,989 | -473,357 | -20,354,351 |
Here are some more numbers to try:
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