A:
Positive:
1 x 1662817155 x 33256343211 x 788065277 x 600295569 x 2922351055 x 1576131385 x 1200592845 x 58447
Negative:
-1 x -166281715-5 x -33256343-211 x -788065-277 x -600295-569 x -292235-1055 x -157613-1385 x -120059-2845 x -58447
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 166,281,715, 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 | 166,281,715 | |
| -1 | -166,281,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,281,715.
Example:
1 x 166,281,715 = 166,281,715
and
-1 x -166,281,715 = 166,281,715
Notice both answers equal 166,281,715
With that explanation out of the way, let's continue. Next, we take the number 166,281,715 and divide it by 2:
166,281,715 ÷ 2 = 83,140,857.5
If the quotient is a whole number, then 2 and 83,140,857.5 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 | 166,281,715 | |
| -1 | -166,281,715 |
Now, we try dividing 166,281,715 by 3:
166,281,715 ÷ 3 = 55,427,238.3333
If the quotient is a whole number, then 3 and 55,427,238.3333 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 | 166,281,715 | |
| -1 | -166,281,715 |
Let's try dividing by 4:
166,281,715 ÷ 4 = 41,570,428.75
If the quotient is a whole number, then 4 and 41,570,428.75 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 | 166,281,715 | |
| -1 | 166,281,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 211 | 277 | 569 | 1,055 | 1,385 | 2,845 | 58,447 | 120,059 | 157,613 | 292,235 | 600,295 | 788,065 | 33,256,343 | 166,281,715 |
| -1 | -5 | -211 | -277 | -569 | -1,055 | -1,385 | -2,845 | -58,447 | -120,059 | -157,613 | -292,235 | -600,295 | -788,065 | -33,256,343 | -166,281,715 |
Here are some more numbers to try:
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