A:
Positive:
1 x 1666658355 x 333331677 x 2380940535 x 4761881347 x 4803051735 x 960612429 x 6861512145 x 13723
Negative:
-1 x -166665835-5 x -33333167-7 x -23809405-35 x -4761881-347 x -480305-1735 x -96061-2429 x -68615-12145 x -13723
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 166,665,835, 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 | 166,665,835 | |
| -1 | -166,665,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,665,835.
Example:
1 x 166,665,835 = 166,665,835
and
-1 x -166,665,835 = 166,665,835
Notice both answers equal 166,665,835
With that explanation out of the way, let's continue. Next, we take the number 166,665,835 and divide it by 2:
166,665,835 ÷ 2 = 83,332,917.5
If the quotient is a whole number, then 2 and 83,332,917.5 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 | 166,665,835 | |
| -1 | -166,665,835 |
Now, we try dividing 166,665,835 by 3:
166,665,835 ÷ 3 = 55,555,278.3333
If the quotient is a whole number, then 3 and 55,555,278.3333 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 | 166,665,835 | |
| -1 | -166,665,835 |
Let's try dividing by 4:
166,665,835 ÷ 4 = 41,666,458.75
If the quotient is a whole number, then 4 and 41,666,458.75 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 | 166,665,835 | |
| -1 | 166,665,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 347 | 1,735 | 2,429 | 12,145 | 13,723 | 68,615 | 96,061 | 480,305 | 4,761,881 | 23,809,405 | 33,333,167 | 166,665,835 |
| -1 | -5 | -7 | -35 | -347 | -1,735 | -2,429 | -12,145 | -13,723 | -68,615 | -96,061 | -480,305 | -4,761,881 | -23,809,405 | -33,333,167 | -166,665,835 |
Here are some more numbers to try:
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