A:
Positive:
1 x 1643235237 x 2347478913 x 1264027123 x 714450191 x 1805753161 x 1020643299 x 5495772093 x 78511
Negative:
-1 x -164323523-7 x -23474789-13 x -12640271-23 x -7144501-91 x -1805753-161 x -1020643-299 x -549577-2093 x -78511
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 164,323,523, 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 | 164,323,523 | |
| -1 | -164,323,523 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,323,523.
Example:
1 x 164,323,523 = 164,323,523
and
-1 x -164,323,523 = 164,323,523
Notice both answers equal 164,323,523
With that explanation out of the way, let's continue. Next, we take the number 164,323,523 and divide it by 2:
164,323,523 ÷ 2 = 82,161,761.5
If the quotient is a whole number, then 2 and 82,161,761.5 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 | 164,323,523 | |
| -1 | -164,323,523 |
Now, we try dividing 164,323,523 by 3:
164,323,523 ÷ 3 = 54,774,507.6667
If the quotient is a whole number, then 3 and 54,774,507.6667 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 | 164,323,523 | |
| -1 | -164,323,523 |
Let's try dividing by 4:
164,323,523 ÷ 4 = 41,080,880.75
If the quotient is a whole number, then 4 and 41,080,880.75 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 | 164,323,523 | |
| -1 | 164,323,523 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 23 | 91 | 161 | 299 | 2,093 | 78,511 | 549,577 | 1,020,643 | 1,805,753 | 7,144,501 | 12,640,271 | 23,474,789 | 164,323,523 |
| -1 | -7 | -13 | -23 | -91 | -161 | -299 | -2,093 | -78,511 | -549,577 | -1,020,643 | -1,805,753 | -7,144,501 | -12,640,271 | -23,474,789 | -164,323,523 |
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