A:
Positive:
1 x 513105117 x 733007347 x 1091713263 x 195097329 x 155959593 x 865271841 x 278714151 x 12361
Negative:
-1 x -51310511-7 x -7330073-47 x -1091713-263 x -195097-329 x -155959-593 x -86527-1841 x -27871-4151 x -12361
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 51,310,511, 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 | 51,310,511 | |
| -1 | -51,310,511 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,310,511.
Example:
1 x 51,310,511 = 51,310,511
and
-1 x -51,310,511 = 51,310,511
Notice both answers equal 51,310,511
With that explanation out of the way, let's continue. Next, we take the number 51,310,511 and divide it by 2:
51,310,511 ÷ 2 = 25,655,255.5
If the quotient is a whole number, then 2 and 25,655,255.5 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 | 51,310,511 | |
| -1 | -51,310,511 |
Now, we try dividing 51,310,511 by 3:
51,310,511 ÷ 3 = 17,103,503.6667
If the quotient is a whole number, then 3 and 17,103,503.6667 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 | 51,310,511 | |
| -1 | -51,310,511 |
Let's try dividing by 4:
51,310,511 ÷ 4 = 12,827,627.75
If the quotient is a whole number, then 4 and 12,827,627.75 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 | 51,310,511 | |
| -1 | 51,310,511 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 263 | 329 | 593 | 1,841 | 4,151 | 12,361 | 27,871 | 86,527 | 155,959 | 195,097 | 1,091,713 | 7,330,073 | 51,310,511 |
| -1 | -7 | -47 | -263 | -329 | -593 | -1,841 | -4,151 | -12,361 | -27,871 | -86,527 | -155,959 | -195,097 | -1,091,713 | -7,330,073 | -51,310,511 |
Here are some more numbers to try:
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