A:
Positive:
1 x 1627686555 x 325537317 x 2325266535 x 46505332111 x 771052203 x 7388510555 x 1542111015 x 14777
Negative:
-1 x -162768655-5 x -32553731-7 x -23252665-35 x -4650533-2111 x -77105-2203 x -73885-10555 x -15421-11015 x -14777
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 162,768,655, 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 | 162,768,655 | |
| -1 | -162,768,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,768,655.
Example:
1 x 162,768,655 = 162,768,655
and
-1 x -162,768,655 = 162,768,655
Notice both answers equal 162,768,655
With that explanation out of the way, let's continue. Next, we take the number 162,768,655 and divide it by 2:
162,768,655 ÷ 2 = 81,384,327.5
If the quotient is a whole number, then 2 and 81,384,327.5 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 | 162,768,655 | |
| -1 | -162,768,655 |
Now, we try dividing 162,768,655 by 3:
162,768,655 ÷ 3 = 54,256,218.3333
If the quotient is a whole number, then 3 and 54,256,218.3333 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 | 162,768,655 | |
| -1 | -162,768,655 |
Let's try dividing by 4:
162,768,655 ÷ 4 = 40,692,163.75
If the quotient is a whole number, then 4 and 40,692,163.75 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 | 162,768,655 | |
| -1 | 162,768,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 2,111 | 2,203 | 10,555 | 11,015 | 14,777 | 15,421 | 73,885 | 77,105 | 4,650,533 | 23,252,665 | 32,553,731 | 162,768,655 |
| -1 | -5 | -7 | -35 | -2,111 | -2,203 | -10,555 | -11,015 | -14,777 | -15,421 | -73,885 | -77,105 | -4,650,533 | -23,252,665 | -32,553,731 | -162,768,655 |
Here are some more numbers to try:
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