A:
Positive:
1 x 1642461317 x 2346373373 x 2249947293 x 560567511 x 3214211097 x 1497232051 x 800817679 x 21389
Negative:
-1 x -164246131-7 x -23463733-73 x -2249947-293 x -560567-511 x -321421-1097 x -149723-2051 x -80081-7679 x -21389
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 164,246,131, 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 | 164,246,131 | |
| -1 | -164,246,131 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,246,131.
Example:
1 x 164,246,131 = 164,246,131
and
-1 x -164,246,131 = 164,246,131
Notice both answers equal 164,246,131
With that explanation out of the way, let's continue. Next, we take the number 164,246,131 and divide it by 2:
164,246,131 ÷ 2 = 82,123,065.5
If the quotient is a whole number, then 2 and 82,123,065.5 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 | 164,246,131 | |
| -1 | -164,246,131 |
Now, we try dividing 164,246,131 by 3:
164,246,131 ÷ 3 = 54,748,710.3333
If the quotient is a whole number, then 3 and 54,748,710.3333 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 | 164,246,131 | |
| -1 | -164,246,131 |
Let's try dividing by 4:
164,246,131 ÷ 4 = 41,061,532.75
If the quotient is a whole number, then 4 and 41,061,532.75 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 | 164,246,131 | |
| -1 | 164,246,131 |
If you did it right, you will end up with this table:
| 1 | 7 | 73 | 293 | 511 | 1,097 | 2,051 | 7,679 | 21,389 | 80,081 | 149,723 | 321,421 | 560,567 | 2,249,947 | 23,463,733 | 164,246,131 |
| -1 | -7 | -73 | -293 | -511 | -1,097 | -2,051 | -7,679 | -21,389 | -80,081 | -149,723 | -321,421 | -560,567 | -2,249,947 | -23,463,733 | -164,246,131 |
Here are some more numbers to try:
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