A:
Positive:
1 x 1775308155 x 355061637 x 2536154511 x 1613916535 x 507230955 x 322783377 x 2305595385 x 461119
Negative:
-1 x -177530815-5 x -35506163-7 x -25361545-11 x -16139165-35 x -5072309-55 x -3227833-77 x -2305595-385 x -461119
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 177,530,815, 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 | 177,530,815 | |
| -1 | -177,530,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 177,530,815.
Example:
1 x 177,530,815 = 177,530,815
and
-1 x -177,530,815 = 177,530,815
Notice both answers equal 177,530,815
With that explanation out of the way, let's continue. Next, we take the number 177,530,815 and divide it by 2:
177,530,815 ÷ 2 = 88,765,407.5
If the quotient is a whole number, then 2 and 88,765,407.5 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 | 177,530,815 | |
| -1 | -177,530,815 |
Now, we try dividing 177,530,815 by 3:
177,530,815 ÷ 3 = 59,176,938.3333
If the quotient is a whole number, then 3 and 59,176,938.3333 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 | 177,530,815 | |
| -1 | -177,530,815 |
Let's try dividing by 4:
177,530,815 ÷ 4 = 44,382,703.75
If the quotient is a whole number, then 4 and 44,382,703.75 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 | 177,530,815 | |
| -1 | 177,530,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 461,119 | 2,305,595 | 3,227,833 | 5,072,309 | 16,139,165 | 25,361,545 | 35,506,163 | 177,530,815 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -461,119 | -2,305,595 | -3,227,833 | -5,072,309 | -16,139,165 | -25,361,545 | -35,506,163 | -177,530,815 |
Here are some more numbers to try:
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