A:
Positive:
1 x 1715216755 x 3430433513 x 1319397525 x 686086765 x 263879567 x 2560025325 x 527759335 x 512005871 x 1969251675 x 1024014355 x 393857877 x 21775
Negative:
-1 x -171521675-5 x -34304335-13 x -13193975-25 x -6860867-65 x -2638795-67 x -2560025-325 x -527759-335 x -512005-871 x -196925-1675 x -102401-4355 x -39385-7877 x -21775
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 171,521,675, 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 | 171,521,675 | |
| -1 | -171,521,675 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 171,521,675.
Example:
1 x 171,521,675 = 171,521,675
and
-1 x -171,521,675 = 171,521,675
Notice both answers equal 171,521,675
With that explanation out of the way, let's continue. Next, we take the number 171,521,675 and divide it by 2:
171,521,675 ÷ 2 = 85,760,837.5
If the quotient is a whole number, then 2 and 85,760,837.5 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 | 171,521,675 | |
| -1 | -171,521,675 |
Now, we try dividing 171,521,675 by 3:
171,521,675 ÷ 3 = 57,173,891.6667
If the quotient is a whole number, then 3 and 57,173,891.6667 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 | 171,521,675 | |
| -1 | -171,521,675 |
Let's try dividing by 4:
171,521,675 ÷ 4 = 42,880,418.75
If the quotient is a whole number, then 4 and 42,880,418.75 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 | 171,521,675 | |
| -1 | 171,521,675 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 67 | 325 | 335 | 871 | 1,675 | 4,355 | 7,877 | 21,775 | 39,385 | 102,401 | 196,925 | 512,005 | 527,759 | 2,560,025 | 2,638,795 | 6,860,867 | 13,193,975 | 34,304,335 | 171,521,675 |
| -1 | -5 | -13 | -25 | -65 | -67 | -325 | -335 | -871 | -1,675 | -4,355 | -7,877 | -21,775 | -39,385 | -102,401 | -196,925 | -512,005 | -527,759 | -2,560,025 | -2,638,795 | -6,860,867 | -13,193,975 | -34,304,335 | -171,521,675 |
Here are some more numbers to try:
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