A:
Positive:
1 x 5212735455 x 10425470913 x 4009796565 x 8019593433 x 12038652165 x 2407735629 x 9260518521 x 28145
Negative:
-1 x -521273545-5 x -104254709-13 x -40097965-65 x -8019593-433 x -1203865-2165 x -240773-5629 x -92605-18521 x -28145
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 521,273,545, 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 | 521,273,545 | |
| -1 | -521,273,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 521,273,545.
Example:
1 x 521,273,545 = 521,273,545
and
-1 x -521,273,545 = 521,273,545
Notice both answers equal 521,273,545
With that explanation out of the way, let's continue. Next, we take the number 521,273,545 and divide it by 2:
521,273,545 ÷ 2 = 260,636,772.5
If the quotient is a whole number, then 2 and 260,636,772.5 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 | 521,273,545 | |
| -1 | -521,273,545 |
Now, we try dividing 521,273,545 by 3:
521,273,545 ÷ 3 = 173,757,848.3333
If the quotient is a whole number, then 3 and 173,757,848.3333 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 | 521,273,545 | |
| -1 | -521,273,545 |
Let's try dividing by 4:
521,273,545 ÷ 4 = 130,318,386.25
If the quotient is a whole number, then 4 and 130,318,386.25 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 | 521,273,545 | |
| -1 | 521,273,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 433 | 2,165 | 5,629 | 18,521 | 28,145 | 92,605 | 240,773 | 1,203,865 | 8,019,593 | 40,097,965 | 104,254,709 | 521,273,545 |
| -1 | -5 | -13 | -65 | -433 | -2,165 | -5,629 | -18,521 | -28,145 | -92,605 | -240,773 | -1,203,865 | -8,019,593 | -40,097,965 | -104,254,709 | -521,273,545 |
Here are some more numbers to try:
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