A:
Positive:
1 x 512434517 x 732049397 x 528283163 x 314377463 x 110677679 x 754691141 x 449113241 x 15811
Negative:
-1 x -51243451-7 x -7320493-97 x -528283-163 x -314377-463 x -110677-679 x -75469-1141 x -44911-3241 x -15811
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 51,243,451, 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 | 51,243,451 | |
| -1 | -51,243,451 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,243,451.
Example:
1 x 51,243,451 = 51,243,451
and
-1 x -51,243,451 = 51,243,451
Notice both answers equal 51,243,451
With that explanation out of the way, let's continue. Next, we take the number 51,243,451 and divide it by 2:
51,243,451 ÷ 2 = 25,621,725.5
If the quotient is a whole number, then 2 and 25,621,725.5 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 | 51,243,451 | |
| -1 | -51,243,451 |
Now, we try dividing 51,243,451 by 3:
51,243,451 ÷ 3 = 17,081,150.3333
If the quotient is a whole number, then 3 and 17,081,150.3333 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 | 51,243,451 | |
| -1 | -51,243,451 |
Let's try dividing by 4:
51,243,451 ÷ 4 = 12,810,862.75
If the quotient is a whole number, then 4 and 12,810,862.75 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 | 51,243,451 | |
| -1 | 51,243,451 |
If you did it right, you will end up with this table:
| 1 | 7 | 97 | 163 | 463 | 679 | 1,141 | 3,241 | 15,811 | 44,911 | 75,469 | 110,677 | 314,377 | 528,283 | 7,320,493 | 51,243,451 |
| -1 | -7 | -97 | -163 | -463 | -679 | -1,141 | -3,241 | -15,811 | -44,911 | -75,469 | -110,677 | -314,377 | -528,283 | -7,320,493 | -51,243,451 |
Here are some more numbers to try:
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