A:
Positive:
1 x 20116053111 x 1828732113 x 15473887143 x 1406717169 x 1190299241 x 834691449 x 4480191859 x 1082092651 x 758813133 x 642074939 x 407295837 x 34463
Negative:
-1 x -201160531-11 x -18287321-13 x -15473887-143 x -1406717-169 x -1190299-241 x -834691-449 x -448019-1859 x -108209-2651 x -75881-3133 x -64207-4939 x -40729-5837 x -34463
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 201,160,531, 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 | 201,160,531 | |
| -1 | -201,160,531 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,160,531.
Example:
1 x 201,160,531 = 201,160,531
and
-1 x -201,160,531 = 201,160,531
Notice both answers equal 201,160,531
With that explanation out of the way, let's continue. Next, we take the number 201,160,531 and divide it by 2:
201,160,531 ÷ 2 = 100,580,265.5
If the quotient is a whole number, then 2 and 100,580,265.5 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 | 201,160,531 | |
| -1 | -201,160,531 |
Now, we try dividing 201,160,531 by 3:
201,160,531 ÷ 3 = 67,053,510.3333
If the quotient is a whole number, then 3 and 67,053,510.3333 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 | 201,160,531 | |
| -1 | -201,160,531 |
Let's try dividing by 4:
201,160,531 ÷ 4 = 50,290,132.75
If the quotient is a whole number, then 4 and 50,290,132.75 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 | 201,160,531 | |
| -1 | 201,160,531 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 169 | 241 | 449 | 1,859 | 2,651 | 3,133 | 4,939 | 5,837 | 34,463 | 40,729 | 64,207 | 75,881 | 108,209 | 448,019 | 834,691 | 1,190,299 | 1,406,717 | 15,473,887 | 18,287,321 | 201,160,531 |
| -1 | -11 | -13 | -143 | -169 | -241 | -449 | -1,859 | -2,651 | -3,133 | -4,939 | -5,837 | -34,463 | -40,729 | -64,207 | -75,881 | -108,209 | -448,019 | -834,691 | -1,190,299 | -1,406,717 | -15,473,887 | -18,287,321 | -201,160,531 |
Here are some more numbers to try:
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