A:
Positive:
1 x 1725317655 x 345063537 x 2464739535 x 49294791601 x 1077653079 x 560358005 x 2155311207 x 15395
Negative:
-1 x -172531765-5 x -34506353-7 x -24647395-35 x -4929479-1601 x -107765-3079 x -56035-8005 x -21553-11207 x -15395
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 172,531,765, 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 | 172,531,765 | |
| -1 | -172,531,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 172,531,765.
Example:
1 x 172,531,765 = 172,531,765
and
-1 x -172,531,765 = 172,531,765
Notice both answers equal 172,531,765
With that explanation out of the way, let's continue. Next, we take the number 172,531,765 and divide it by 2:
172,531,765 ÷ 2 = 86,265,882.5
If the quotient is a whole number, then 2 and 86,265,882.5 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 | 172,531,765 | |
| -1 | -172,531,765 |
Now, we try dividing 172,531,765 by 3:
172,531,765 ÷ 3 = 57,510,588.3333
If the quotient is a whole number, then 3 and 57,510,588.3333 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 | 172,531,765 | |
| -1 | -172,531,765 |
Let's try dividing by 4:
172,531,765 ÷ 4 = 43,132,941.25
If the quotient is a whole number, then 4 and 43,132,941.25 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 | 172,531,765 | |
| -1 | 172,531,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,601 | 3,079 | 8,005 | 11,207 | 15,395 | 21,553 | 56,035 | 107,765 | 4,929,479 | 24,647,395 | 34,506,353 | 172,531,765 |
| -1 | -5 | -7 | -35 | -1,601 | -3,079 | -8,005 | -11,207 | -15,395 | -21,553 | -56,035 | -107,765 | -4,929,479 | -24,647,395 | -34,506,353 | -172,531,765 |
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