A:
Positive:
1 x 511460817 x 730658317 x 300859319 x 2691899119 x 429799133 x 384557323 x 1583472261 x 22621
Negative:
-1 x -51146081-7 x -7306583-17 x -3008593-19 x -2691899-119 x -429799-133 x -384557-323 x -158347-2261 x -22621
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 51,146,081, 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 | 51,146,081 | |
| -1 | -51,146,081 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,146,081.
Example:
1 x 51,146,081 = 51,146,081
and
-1 x -51,146,081 = 51,146,081
Notice both answers equal 51,146,081
With that explanation out of the way, let's continue. Next, we take the number 51,146,081 and divide it by 2:
51,146,081 ÷ 2 = 25,573,040.5
If the quotient is a whole number, then 2 and 25,573,040.5 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 | 51,146,081 | |
| -1 | -51,146,081 |
Now, we try dividing 51,146,081 by 3:
51,146,081 ÷ 3 = 17,048,693.6667
If the quotient is a whole number, then 3 and 17,048,693.6667 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 | 51,146,081 | |
| -1 | -51,146,081 |
Let's try dividing by 4:
51,146,081 ÷ 4 = 12,786,520.25
If the quotient is a whole number, then 4 and 12,786,520.25 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 | 51,146,081 | |
| -1 | 51,146,081 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 19 | 119 | 133 | 323 | 2,261 | 22,621 | 158,347 | 384,557 | 429,799 | 2,691,899 | 3,008,593 | 7,306,583 | 51,146,081 |
| -1 | -7 | -17 | -19 | -119 | -133 | -323 | -2,261 | -22,621 | -158,347 | -384,557 | -429,799 | -2,691,899 | -3,008,593 | -7,306,583 | -51,146,081 |
Here are some more numbers to try:
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