A:
Positive:
1 x 16260504711 x 1478227737 x 439473167 x 242694189 x 1827023407 x 399521737 x 220631979 x 1660932479 x 655933293 x 493794489 x 362235963 x 27269
Negative:
-1 x -162605047-11 x -14782277-37 x -4394731-67 x -2426941-89 x -1827023-407 x -399521-737 x -220631-979 x -166093-2479 x -65593-3293 x -49379-4489 x -36223-5963 x -27269
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 162,605,047, 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 | 162,605,047 | |
| -1 | -162,605,047 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,605,047.
Example:
1 x 162,605,047 = 162,605,047
and
-1 x -162,605,047 = 162,605,047
Notice both answers equal 162,605,047
With that explanation out of the way, let's continue. Next, we take the number 162,605,047 and divide it by 2:
162,605,047 ÷ 2 = 81,302,523.5
If the quotient is a whole number, then 2 and 81,302,523.5 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 | 162,605,047 | |
| -1 | -162,605,047 |
Now, we try dividing 162,605,047 by 3:
162,605,047 ÷ 3 = 54,201,682.3333
If the quotient is a whole number, then 3 and 54,201,682.3333 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 | 162,605,047 | |
| -1 | -162,605,047 |
Let's try dividing by 4:
162,605,047 ÷ 4 = 40,651,261.75
If the quotient is a whole number, then 4 and 40,651,261.75 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 | 162,605,047 | |
| -1 | 162,605,047 |
If you did it right, you will end up with this table:
| 1 | 11 | 37 | 67 | 89 | 407 | 737 | 979 | 2,479 | 3,293 | 4,489 | 5,963 | 27,269 | 36,223 | 49,379 | 65,593 | 166,093 | 220,631 | 399,521 | 1,827,023 | 2,426,941 | 4,394,731 | 14,782,277 | 162,605,047 |
| -1 | -11 | -37 | -67 | -89 | -407 | -737 | -979 | -2,479 | -3,293 | -4,489 | -5,963 | -27,269 | -36,223 | -49,379 | -65,593 | -166,093 | -220,631 | -399,521 | -1,827,023 | -2,426,941 | -4,394,731 | -14,782,277 | -162,605,047 |
Here are some more numbers to try:
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