A:
Positive:
1 x 16660151313 x 1281550117 x 9800089221 x 753853433 x 3847611741 x 956935629 x 295977361 x 22633
Negative:
-1 x -166601513-13 x -12815501-17 x -9800089-221 x -753853-433 x -384761-1741 x -95693-5629 x -29597-7361 x -22633
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 166,601,513, 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 | 166,601,513 | |
| -1 | -166,601,513 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,601,513.
Example:
1 x 166,601,513 = 166,601,513
and
-1 x -166,601,513 = 166,601,513
Notice both answers equal 166,601,513
With that explanation out of the way, let's continue. Next, we take the number 166,601,513 and divide it by 2:
166,601,513 ÷ 2 = 83,300,756.5
If the quotient is a whole number, then 2 and 83,300,756.5 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 | 166,601,513 | |
| -1 | -166,601,513 |
Now, we try dividing 166,601,513 by 3:
166,601,513 ÷ 3 = 55,533,837.6667
If the quotient is a whole number, then 3 and 55,533,837.6667 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 | 166,601,513 | |
| -1 | -166,601,513 |
Let's try dividing by 4:
166,601,513 ÷ 4 = 41,650,378.25
If the quotient is a whole number, then 4 and 41,650,378.25 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 | 166,601,513 | |
| -1 | 166,601,513 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 221 | 433 | 1,741 | 5,629 | 7,361 | 22,633 | 29,597 | 95,693 | 384,761 | 753,853 | 9,800,089 | 12,815,501 | 166,601,513 |
| -1 | -13 | -17 | -221 | -433 | -1,741 | -5,629 | -7,361 | -22,633 | -29,597 | -95,693 | -384,761 | -753,853 | -9,800,089 | -12,815,501 | -166,601,513 |
Here are some more numbers to try:
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