A:
Positive:
1 x 5107201919 x 268800141 x 124565953 x 963623779 x 655611007 x 507171237 x 412872173 x 23503
Negative:
-1 x -51072019-19 x -2688001-41 x -1245659-53 x -963623-779 x -65561-1007 x -50717-1237 x -41287-2173 x -23503
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 51,072,019, 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 | 51,072,019 | |
| -1 | -51,072,019 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,072,019.
Example:
1 x 51,072,019 = 51,072,019
and
-1 x -51,072,019 = 51,072,019
Notice both answers equal 51,072,019
With that explanation out of the way, let's continue. Next, we take the number 51,072,019 and divide it by 2:
51,072,019 ÷ 2 = 25,536,009.5
If the quotient is a whole number, then 2 and 25,536,009.5 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 | 51,072,019 | |
| -1 | -51,072,019 |
Now, we try dividing 51,072,019 by 3:
51,072,019 ÷ 3 = 17,024,006.3333
If the quotient is a whole number, then 3 and 17,024,006.3333 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 | 51,072,019 | |
| -1 | -51,072,019 |
Let's try dividing by 4:
51,072,019 ÷ 4 = 12,768,004.75
If the quotient is a whole number, then 4 and 12,768,004.75 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 | 51,072,019 | |
| -1 | 51,072,019 |
If you did it right, you will end up with this table:
| 1 | 19 | 41 | 53 | 779 | 1,007 | 1,237 | 2,173 | 23,503 | 41,287 | 50,717 | 65,561 | 963,623 | 1,245,659 | 2,688,001 | 51,072,019 |
| -1 | -19 | -41 | -53 | -779 | -1,007 | -1,237 | -2,173 | -23,503 | -41,287 | -50,717 | -65,561 | -963,623 | -1,245,659 | -2,688,001 | -51,072,019 |
Here are some more numbers to try:
Try the factor calculator