A:
Positive:
1 x 2013123077 x 2875890123 x 875270959 x 3412073161 x 1250387413 x 4874391357 x 1483519499 x 21193
Negative:
-1 x -201312307-7 x -28758901-23 x -8752709-59 x -3412073-161 x -1250387-413 x -487439-1357 x -148351-9499 x -21193
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 201,312,307, 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 | 201,312,307 | |
| -1 | -201,312,307 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,312,307.
Example:
1 x 201,312,307 = 201,312,307
and
-1 x -201,312,307 = 201,312,307
Notice both answers equal 201,312,307
With that explanation out of the way, let's continue. Next, we take the number 201,312,307 and divide it by 2:
201,312,307 ÷ 2 = 100,656,153.5
If the quotient is a whole number, then 2 and 100,656,153.5 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 | 201,312,307 | |
| -1 | -201,312,307 |
Now, we try dividing 201,312,307 by 3:
201,312,307 ÷ 3 = 67,104,102.3333
If the quotient is a whole number, then 3 and 67,104,102.3333 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 | 201,312,307 | |
| -1 | -201,312,307 |
Let's try dividing by 4:
201,312,307 ÷ 4 = 50,328,076.75
If the quotient is a whole number, then 4 and 50,328,076.75 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 | 201,312,307 | |
| -1 | 201,312,307 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 59 | 161 | 413 | 1,357 | 9,499 | 21,193 | 148,351 | 487,439 | 1,250,387 | 3,412,073 | 8,752,709 | 28,758,901 | 201,312,307 |
| -1 | -7 | -23 | -59 | -161 | -413 | -1,357 | -9,499 | -21,193 | -148,351 | -487,439 | -1,250,387 | -3,412,073 | -8,752,709 | -28,758,901 | -201,312,307 |
Here are some more numbers to try:
Try the factor calculator