A:
Positive:
1 x 51536224311 x 4685111389 x 5790587149 x 3458807979 x 5264171639 x 3144373533 x 14587113261 x 38863
Negative:
-1 x -515362243-11 x -46851113-89 x -5790587-149 x -3458807-979 x -526417-1639 x -314437-3533 x -145871-13261 x -38863
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 515,362,243, 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 | 515,362,243 | |
| -1 | -515,362,243 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 515,362,243.
Example:
1 x 515,362,243 = 515,362,243
and
-1 x -515,362,243 = 515,362,243
Notice both answers equal 515,362,243
With that explanation out of the way, let's continue. Next, we take the number 515,362,243 and divide it by 2:
515,362,243 ÷ 2 = 257,681,121.5
If the quotient is a whole number, then 2 and 257,681,121.5 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 | 515,362,243 | |
| -1 | -515,362,243 |
Now, we try dividing 515,362,243 by 3:
515,362,243 ÷ 3 = 171,787,414.3333
If the quotient is a whole number, then 3 and 171,787,414.3333 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 | 515,362,243 | |
| -1 | -515,362,243 |
Let's try dividing by 4:
515,362,243 ÷ 4 = 128,840,560.75
If the quotient is a whole number, then 4 and 128,840,560.75 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 | 515,362,243 | |
| -1 | 515,362,243 |
If you did it right, you will end up with this table:
| 1 | 11 | 89 | 149 | 979 | 1,639 | 3,533 | 13,261 | 38,863 | 145,871 | 314,437 | 526,417 | 3,458,807 | 5,790,587 | 46,851,113 | 515,362,243 |
| -1 | -11 | -89 | -149 | -979 | -1,639 | -3,533 | -13,261 | -38,863 | -145,871 | -314,437 | -526,417 | -3,458,807 | -5,790,587 | -46,851,113 | -515,362,243 |
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