A:
Positive:
1 x 514310155 x 1028620331 x 165906541 x 1254415155 x 331813205 x 2508831271 x 404656355 x 8093
Negative:
-1 x -51431015-5 x -10286203-31 x -1659065-41 x -1254415-155 x -331813-205 x -250883-1271 x -40465-6355 x -8093
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 51,431,015, 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 | 51,431,015 | |
| -1 | -51,431,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,431,015.
Example:
1 x 51,431,015 = 51,431,015
and
-1 x -51,431,015 = 51,431,015
Notice both answers equal 51,431,015
With that explanation out of the way, let's continue. Next, we take the number 51,431,015 and divide it by 2:
51,431,015 ÷ 2 = 25,715,507.5
If the quotient is a whole number, then 2 and 25,715,507.5 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 | 51,431,015 | |
| -1 | -51,431,015 |
Now, we try dividing 51,431,015 by 3:
51,431,015 ÷ 3 = 17,143,671.6667
If the quotient is a whole number, then 3 and 17,143,671.6667 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 | 51,431,015 | |
| -1 | -51,431,015 |
Let's try dividing by 4:
51,431,015 ÷ 4 = 12,857,753.75
If the quotient is a whole number, then 4 and 12,857,753.75 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 | 51,431,015 | |
| -1 | 51,431,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 41 | 155 | 205 | 1,271 | 6,355 | 8,093 | 40,465 | 250,883 | 331,813 | 1,254,415 | 1,659,065 | 10,286,203 | 51,431,015 |
| -1 | -5 | -31 | -41 | -155 | -205 | -1,271 | -6,355 | -8,093 | -40,465 | -250,883 | -331,813 | -1,254,415 | -1,659,065 | -10,286,203 | -51,431,015 |
Here are some more numbers to try:
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