A:
Positive:
1 x 1005121711 x 91374783 x 121099101 x 99517109 x 92213913 x 110091111 x 90471199 x 8383
Negative:
-1 x -10051217-11 x -913747-83 x -121099-101 x -99517-109 x -92213-913 x -11009-1111 x -9047-1199 x -8383
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 10,051,217, 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 | 10,051,217 | |
| -1 | -10,051,217 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,051,217.
Example:
1 x 10,051,217 = 10,051,217
and
-1 x -10,051,217 = 10,051,217
Notice both answers equal 10,051,217
With that explanation out of the way, let's continue. Next, we take the number 10,051,217 and divide it by 2:
10,051,217 ÷ 2 = 5,025,608.5
If the quotient is a whole number, then 2 and 5,025,608.5 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 | 10,051,217 | |
| -1 | -10,051,217 |
Now, we try dividing 10,051,217 by 3:
10,051,217 ÷ 3 = 3,350,405.6667
If the quotient is a whole number, then 3 and 3,350,405.6667 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 | 10,051,217 | |
| -1 | -10,051,217 |
Let's try dividing by 4:
10,051,217 ÷ 4 = 2,512,804.25
If the quotient is a whole number, then 4 and 2,512,804.25 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 | 10,051,217 | |
| -1 | 10,051,217 |
If you did it right, you will end up with this table:
| 1 | 11 | 83 | 101 | 109 | 913 | 1,111 | 1,199 | 8,383 | 9,047 | 11,009 | 92,213 | 99,517 | 121,099 | 913,747 | 10,051,217 |
| -1 | -11 | -83 | -101 | -109 | -913 | -1,111 | -1,199 | -8,383 | -9,047 | -11,009 | -92,213 | -99,517 | -121,099 | -913,747 | -10,051,217 |
Here are some more numbers to try:
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