A:
Positive:
1 x 26321909911 x 2392900913 x 20247623143 x 1840693521 x 5052193533 x 745035731 x 459296773 x 38863
Negative:
-1 x -263219099-11 x -23929009-13 x -20247623-143 x -1840693-521 x -505219-3533 x -74503-5731 x -45929-6773 x -38863
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 263,219,099, 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 | 263,219,099 | |
| -1 | -263,219,099 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 263,219,099.
Example:
1 x 263,219,099 = 263,219,099
and
-1 x -263,219,099 = 263,219,099
Notice both answers equal 263,219,099
With that explanation out of the way, let's continue. Next, we take the number 263,219,099 and divide it by 2:
263,219,099 ÷ 2 = 131,609,549.5
If the quotient is a whole number, then 2 and 131,609,549.5 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 | 263,219,099 | |
| -1 | -263,219,099 |
Now, we try dividing 263,219,099 by 3:
263,219,099 ÷ 3 = 87,739,699.6667
If the quotient is a whole number, then 3 and 87,739,699.6667 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 | 263,219,099 | |
| -1 | -263,219,099 |
Let's try dividing by 4:
263,219,099 ÷ 4 = 65,804,774.75
If the quotient is a whole number, then 4 and 65,804,774.75 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 | 263,219,099 | |
| -1 | 263,219,099 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 521 | 3,533 | 5,731 | 6,773 | 38,863 | 45,929 | 74,503 | 505,219 | 1,840,693 | 20,247,623 | 23,929,009 | 263,219,099 |
| -1 | -11 | -13 | -143 | -521 | -3,533 | -5,731 | -6,773 | -38,863 | -45,929 | -74,503 | -505,219 | -1,840,693 | -20,247,623 | -23,929,009 | -263,219,099 |
Here are some more numbers to try:
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