A:
Positive:
1 x 20315106129 x 700520947 x 4322363113 x 17977971319 x 1540191363 x 1490473277 x 619935311 x 38251
Negative:
-1 x -203151061-29 x -7005209-47 x -4322363-113 x -1797797-1319 x -154019-1363 x -149047-3277 x -61993-5311 x -38251
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 203,151,061, 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 | 203,151,061 | |
| -1 | -203,151,061 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,151,061.
Example:
1 x 203,151,061 = 203,151,061
and
-1 x -203,151,061 = 203,151,061
Notice both answers equal 203,151,061
With that explanation out of the way, let's continue. Next, we take the number 203,151,061 and divide it by 2:
203,151,061 ÷ 2 = 101,575,530.5
If the quotient is a whole number, then 2 and 101,575,530.5 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 | 203,151,061 | |
| -1 | -203,151,061 |
Now, we try dividing 203,151,061 by 3:
203,151,061 ÷ 3 = 67,717,020.3333
If the quotient is a whole number, then 3 and 67,717,020.3333 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 | 203,151,061 | |
| -1 | -203,151,061 |
Let's try dividing by 4:
203,151,061 ÷ 4 = 50,787,765.25
If the quotient is a whole number, then 4 and 50,787,765.25 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 | 203,151,061 | |
| -1 | 203,151,061 |
If you did it right, you will end up with this table:
| 1 | 29 | 47 | 113 | 1,319 | 1,363 | 3,277 | 5,311 | 38,251 | 61,993 | 149,047 | 154,019 | 1,797,797 | 4,322,363 | 7,005,209 | 203,151,061 |
| -1 | -29 | -47 | -113 | -1,319 | -1,363 | -3,277 | -5,311 | -38,251 | -61,993 | -149,047 | -154,019 | -1,797,797 | -4,322,363 | -7,005,209 | -203,151,061 |
Here are some more numbers to try:
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