A:
Positive:
1 x 26307284913 x 2023637337 x 7110077251 x 1048099481 x 5469292179 x 1207313263 x 806239287 x 28327
Negative:
-1 x -263072849-13 x -20236373-37 x -7110077-251 x -1048099-481 x -546929-2179 x -120731-3263 x -80623-9287 x -28327
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 263,072,849, 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 | 263,072,849 | |
| -1 | -263,072,849 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 263,072,849.
Example:
1 x 263,072,849 = 263,072,849
and
-1 x -263,072,849 = 263,072,849
Notice both answers equal 263,072,849
With that explanation out of the way, let's continue. Next, we take the number 263,072,849 and divide it by 2:
263,072,849 ÷ 2 = 131,536,424.5
If the quotient is a whole number, then 2 and 131,536,424.5 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 | 263,072,849 | |
| -1 | -263,072,849 |
Now, we try dividing 263,072,849 by 3:
263,072,849 ÷ 3 = 87,690,949.6667
If the quotient is a whole number, then 3 and 87,690,949.6667 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 | 263,072,849 | |
| -1 | -263,072,849 |
Let's try dividing by 4:
263,072,849 ÷ 4 = 65,768,212.25
If the quotient is a whole number, then 4 and 65,768,212.25 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 | 263,072,849 | |
| -1 | 263,072,849 |
If you did it right, you will end up with this table:
| 1 | 13 | 37 | 251 | 481 | 2,179 | 3,263 | 9,287 | 28,327 | 80,623 | 120,731 | 546,929 | 1,048,099 | 7,110,077 | 20,236,373 | 263,072,849 |
| -1 | -13 | -37 | -251 | -481 | -2,179 | -3,263 | -9,287 | -28,327 | -80,623 | -120,731 | -546,929 | -1,048,099 | -7,110,077 | -20,236,373 | -263,072,849 |
Here are some more numbers to try:
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