A:
Positive:
1 x 1640501177 x 2343573111 x 1491364743 x 381511977 x 2130521301 x 545017473 x 3468293311 x 49547
Negative:
-1 x -164050117-7 x -23435731-11 x -14913647-43 x -3815119-77 x -2130521-301 x -545017-473 x -346829-3311 x -49547
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 164,050,117, 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 | 164,050,117 | |
| -1 | -164,050,117 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,050,117.
Example:
1 x 164,050,117 = 164,050,117
and
-1 x -164,050,117 = 164,050,117
Notice both answers equal 164,050,117
With that explanation out of the way, let's continue. Next, we take the number 164,050,117 and divide it by 2:
164,050,117 ÷ 2 = 82,025,058.5
If the quotient is a whole number, then 2 and 82,025,058.5 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 | 164,050,117 | |
| -1 | -164,050,117 |
Now, we try dividing 164,050,117 by 3:
164,050,117 ÷ 3 = 54,683,372.3333
If the quotient is a whole number, then 3 and 54,683,372.3333 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 | 164,050,117 | |
| -1 | -164,050,117 |
Let's try dividing by 4:
164,050,117 ÷ 4 = 41,012,529.25
If the quotient is a whole number, then 4 and 41,012,529.25 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 | 164,050,117 | |
| -1 | 164,050,117 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 43 | 77 | 301 | 473 | 3,311 | 49,547 | 346,829 | 545,017 | 2,130,521 | 3,815,119 | 14,913,647 | 23,435,731 | 164,050,117 |
| -1 | -7 | -11 | -43 | -77 | -301 | -473 | -3,311 | -49,547 | -346,829 | -545,017 | -2,130,521 | -3,815,119 | -14,913,647 | -23,435,731 | -164,050,117 |
Here are some more numbers to try:
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