A:
Positive:
1 x 1582367655 x 3164735317 x 930804585 x 18616091097 x 1442451697 x 932455485 x 288498485 x 18649
Negative:
-1 x -158236765-5 x -31647353-17 x -9308045-85 x -1861609-1097 x -144245-1697 x -93245-5485 x -28849-8485 x -18649
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 158,236,765, 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 | 158,236,765 | |
| -1 | -158,236,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 158,236,765.
Example:
1 x 158,236,765 = 158,236,765
and
-1 x -158,236,765 = 158,236,765
Notice both answers equal 158,236,765
With that explanation out of the way, let's continue. Next, we take the number 158,236,765 and divide it by 2:
158,236,765 ÷ 2 = 79,118,382.5
If the quotient is a whole number, then 2 and 79,118,382.5 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 | 158,236,765 | |
| -1 | -158,236,765 |
Now, we try dividing 158,236,765 by 3:
158,236,765 ÷ 3 = 52,745,588.3333
If the quotient is a whole number, then 3 and 52,745,588.3333 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 | 158,236,765 | |
| -1 | -158,236,765 |
Let's try dividing by 4:
158,236,765 ÷ 4 = 39,559,191.25
If the quotient is a whole number, then 4 and 39,559,191.25 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 | 158,236,765 | |
| -1 | 158,236,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 1,097 | 1,697 | 5,485 | 8,485 | 18,649 | 28,849 | 93,245 | 144,245 | 1,861,609 | 9,308,045 | 31,647,353 | 158,236,765 |
| -1 | -5 | -17 | -85 | -1,097 | -1,697 | -5,485 | -8,485 | -18,649 | -28,849 | -93,245 | -144,245 | -1,861,609 | -9,308,045 | -31,647,353 | -158,236,765 |
Here are some more numbers to try:
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