A:
Positive:
1 x 16256356153 x 306723797 x 1675913103 x 1578287307 x 5295235141 x 316215459 x 297799991 x 16271
Negative:
-1 x -162563561-53 x -3067237-97 x -1675913-103 x -1578287-307 x -529523-5141 x -31621-5459 x -29779-9991 x -16271
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 162,563,561, 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 | 162,563,561 | |
| -1 | -162,563,561 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,563,561.
Example:
1 x 162,563,561 = 162,563,561
and
-1 x -162,563,561 = 162,563,561
Notice both answers equal 162,563,561
With that explanation out of the way, let's continue. Next, we take the number 162,563,561 and divide it by 2:
162,563,561 ÷ 2 = 81,281,780.5
If the quotient is a whole number, then 2 and 81,281,780.5 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 | 162,563,561 | |
| -1 | -162,563,561 |
Now, we try dividing 162,563,561 by 3:
162,563,561 ÷ 3 = 54,187,853.6667
If the quotient is a whole number, then 3 and 54,187,853.6667 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 | 162,563,561 | |
| -1 | -162,563,561 |
Let's try dividing by 4:
162,563,561 ÷ 4 = 40,640,890.25
If the quotient is a whole number, then 4 and 40,640,890.25 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 | 162,563,561 | |
| -1 | 162,563,561 |
If you did it right, you will end up with this table:
| 1 | 53 | 97 | 103 | 307 | 5,141 | 5,459 | 9,991 | 16,271 | 29,779 | 31,621 | 529,523 | 1,578,287 | 1,675,913 | 3,067,237 | 162,563,561 |
| -1 | -53 | -97 | -103 | -307 | -5,141 | -5,459 | -9,991 | -16,271 | -29,779 | -31,621 | -529,523 | -1,578,287 | -1,675,913 | -3,067,237 | -162,563,561 |
Here are some more numbers to try:
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