A:
Positive:
1 x 1645156455 x 329031297 x 2350223535 x 4700447211 x 7796951055 x 1559391477 x 1113857385 x 22277
Negative:
-1 x -164515645-5 x -32903129-7 x -23502235-35 x -4700447-211 x -779695-1055 x -155939-1477 x -111385-7385 x -22277
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 164,515,645, 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 | 164,515,645 | |
| -1 | -164,515,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,515,645.
Example:
1 x 164,515,645 = 164,515,645
and
-1 x -164,515,645 = 164,515,645
Notice both answers equal 164,515,645
With that explanation out of the way, let's continue. Next, we take the number 164,515,645 and divide it by 2:
164,515,645 ÷ 2 = 82,257,822.5
If the quotient is a whole number, then 2 and 82,257,822.5 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 | 164,515,645 | |
| -1 | -164,515,645 |
Now, we try dividing 164,515,645 by 3:
164,515,645 ÷ 3 = 54,838,548.3333
If the quotient is a whole number, then 3 and 54,838,548.3333 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 | 164,515,645 | |
| -1 | -164,515,645 |
Let's try dividing by 4:
164,515,645 ÷ 4 = 41,128,911.25
If the quotient is a whole number, then 4 and 41,128,911.25 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 | 164,515,645 | |
| -1 | 164,515,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 211 | 1,055 | 1,477 | 7,385 | 22,277 | 111,385 | 155,939 | 779,695 | 4,700,447 | 23,502,235 | 32,903,129 | 164,515,645 |
| -1 | -5 | -7 | -35 | -211 | -1,055 | -1,477 | -7,385 | -22,277 | -111,385 | -155,939 | -779,695 | -4,700,447 | -23,502,235 | -32,903,129 | -164,515,645 |
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