A:
Positive:
1 x 5138433655 x 1027686737 x 7340619535 x 1468123941 x 12532765205 x 2506553287 x 17903951435 x 358079
Negative:
-1 x -513843365-5 x -102768673-7 x -73406195-35 x -14681239-41 x -12532765-205 x -2506553-287 x -1790395-1435 x -358079
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 513,843,365, 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 | 513,843,365 | |
| -1 | -513,843,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 513,843,365.
Example:
1 x 513,843,365 = 513,843,365
and
-1 x -513,843,365 = 513,843,365
Notice both answers equal 513,843,365
With that explanation out of the way, let's continue. Next, we take the number 513,843,365 and divide it by 2:
513,843,365 ÷ 2 = 256,921,682.5
If the quotient is a whole number, then 2 and 256,921,682.5 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 | 513,843,365 | |
| -1 | -513,843,365 |
Now, we try dividing 513,843,365 by 3:
513,843,365 ÷ 3 = 171,281,121.6667
If the quotient is a whole number, then 3 and 171,281,121.6667 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 | 513,843,365 | |
| -1 | -513,843,365 |
Let's try dividing by 4:
513,843,365 ÷ 4 = 128,460,841.25
If the quotient is a whole number, then 4 and 128,460,841.25 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 | 513,843,365 | |
| -1 | 513,843,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 358,079 | 1,790,395 | 2,506,553 | 12,532,765 | 14,681,239 | 73,406,195 | 102,768,673 | 513,843,365 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -358,079 | -1,790,395 | -2,506,553 | -12,532,765 | -14,681,239 | -73,406,195 | -102,768,673 | -513,843,365 |
Here are some more numbers to try:
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