A:
Positive:
1 x 263032217 x 375760331 x 84849147 x 559643217 x 121213329 x 799491457 x 180532579 x 10199
Negative:
-1 x -26303221-7 x -3757603-31 x -848491-47 x -559643-217 x -121213-329 x -79949-1457 x -18053-2579 x -10199
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 26,303,221, 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 | 26,303,221 | |
| -1 | -26,303,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,303,221.
Example:
1 x 26,303,221 = 26,303,221
and
-1 x -26,303,221 = 26,303,221
Notice both answers equal 26,303,221
With that explanation out of the way, let's continue. Next, we take the number 26,303,221 and divide it by 2:
26,303,221 ÷ 2 = 13,151,610.5
If the quotient is a whole number, then 2 and 13,151,610.5 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 | 26,303,221 | |
| -1 | -26,303,221 |
Now, we try dividing 26,303,221 by 3:
26,303,221 ÷ 3 = 8,767,740.3333
If the quotient is a whole number, then 3 and 8,767,740.3333 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 | 26,303,221 | |
| -1 | -26,303,221 |
Let's try dividing by 4:
26,303,221 ÷ 4 = 6,575,805.25
If the quotient is a whole number, then 4 and 6,575,805.25 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 | 26,303,221 | |
| -1 | 26,303,221 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 47 | 217 | 329 | 1,457 | 2,579 | 10,199 | 18,053 | 79,949 | 121,213 | 559,643 | 848,491 | 3,757,603 | 26,303,221 |
| -1 | -7 | -31 | -47 | -217 | -329 | -1,457 | -2,579 | -10,199 | -18,053 | -79,949 | -121,213 | -559,643 | -848,491 | -3,757,603 | -26,303,221 |
Here are some more numbers to try:
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