A:
Positive:
1 x 511030317 x 730043337 x 138116349 x 104291971 x 719761259 x 197309397 x 128723497 x 1028231813 x 281872627 x 194532779 x 183893479 x 14689
Negative:
-1 x -51103031-7 x -7300433-37 x -1381163-49 x -1042919-71 x -719761-259 x -197309-397 x -128723-497 x -102823-1813 x -28187-2627 x -19453-2779 x -18389-3479 x -14689
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 51,103,031, 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 | 51,103,031 | |
| -1 | -51,103,031 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,103,031.
Example:
1 x 51,103,031 = 51,103,031
and
-1 x -51,103,031 = 51,103,031
Notice both answers equal 51,103,031
With that explanation out of the way, let's continue. Next, we take the number 51,103,031 and divide it by 2:
51,103,031 ÷ 2 = 25,551,515.5
If the quotient is a whole number, then 2 and 25,551,515.5 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 | 51,103,031 | |
| -1 | -51,103,031 |
Now, we try dividing 51,103,031 by 3:
51,103,031 ÷ 3 = 17,034,343.6667
If the quotient is a whole number, then 3 and 17,034,343.6667 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 | 51,103,031 | |
| -1 | -51,103,031 |
Let's try dividing by 4:
51,103,031 ÷ 4 = 12,775,757.75
If the quotient is a whole number, then 4 and 12,775,757.75 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 | 51,103,031 | |
| -1 | 51,103,031 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 49 | 71 | 259 | 397 | 497 | 1,813 | 2,627 | 2,779 | 3,479 | 14,689 | 18,389 | 19,453 | 28,187 | 102,823 | 128,723 | 197,309 | 719,761 | 1,042,919 | 1,381,163 | 7,300,433 | 51,103,031 |
| -1 | -7 | -37 | -49 | -71 | -259 | -397 | -497 | -1,813 | -2,627 | -2,779 | -3,479 | -14,689 | -18,389 | -19,453 | -28,187 | -102,823 | -128,723 | -197,309 | -719,761 | -1,042,919 | -1,381,163 | -7,300,433 | -51,103,031 |
Here are some more numbers to try:
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