A:
Positive:
1 x 1725152655 x 3450305313 x 1327040553 x 325500565 x 2654081265 x 651001689 x 2503853445 x 50077
Negative:
-1 x -172515265-5 x -34503053-13 x -13270405-53 x -3255005-65 x -2654081-265 x -651001-689 x -250385-3445 x -50077
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 172,515,265, 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 | 172,515,265 | |
| -1 | -172,515,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 172,515,265.
Example:
1 x 172,515,265 = 172,515,265
and
-1 x -172,515,265 = 172,515,265
Notice both answers equal 172,515,265
With that explanation out of the way, let's continue. Next, we take the number 172,515,265 and divide it by 2:
172,515,265 ÷ 2 = 86,257,632.5
If the quotient is a whole number, then 2 and 86,257,632.5 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 | 172,515,265 | |
| -1 | -172,515,265 |
Now, we try dividing 172,515,265 by 3:
172,515,265 ÷ 3 = 57,505,088.3333
If the quotient is a whole number, then 3 and 57,505,088.3333 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 | 172,515,265 | |
| -1 | -172,515,265 |
Let's try dividing by 4:
172,515,265 ÷ 4 = 43,128,816.25
If the quotient is a whole number, then 4 and 43,128,816.25 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 | 172,515,265 | |
| -1 | 172,515,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 53 | 65 | 265 | 689 | 3,445 | 50,077 | 250,385 | 651,001 | 2,654,081 | 3,255,005 | 13,270,405 | 34,503,053 | 172,515,265 |
| -1 | -5 | -13 | -53 | -65 | -265 | -689 | -3,445 | -50,077 | -250,385 | -651,001 | -2,654,081 | -3,255,005 | -13,270,405 | -34,503,053 | -172,515,265 |
Here are some more numbers to try:
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