A:
Positive:
1 x 103838217 x 148340317 x 61081371 x 146251119 x 87259497 x 208931207 x 86031229 x 8449
Negative:
-1 x -10383821-7 x -1483403-17 x -610813-71 x -146251-119 x -87259-497 x -20893-1207 x -8603-1229 x -8449
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 10,383,821, 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 | 10,383,821 | |
| -1 | -10,383,821 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,383,821.
Example:
1 x 10,383,821 = 10,383,821
and
-1 x -10,383,821 = 10,383,821
Notice both answers equal 10,383,821
With that explanation out of the way, let's continue. Next, we take the number 10,383,821 and divide it by 2:
10,383,821 ÷ 2 = 5,191,910.5
If the quotient is a whole number, then 2 and 5,191,910.5 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 | 10,383,821 | |
| -1 | -10,383,821 |
Now, we try dividing 10,383,821 by 3:
10,383,821 ÷ 3 = 3,461,273.6667
If the quotient is a whole number, then 3 and 3,461,273.6667 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 | 10,383,821 | |
| -1 | -10,383,821 |
Let's try dividing by 4:
10,383,821 ÷ 4 = 2,595,955.25
If the quotient is a whole number, then 4 and 2,595,955.25 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 | 10,383,821 | |
| -1 | 10,383,821 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 71 | 119 | 497 | 1,207 | 1,229 | 8,449 | 8,603 | 20,893 | 87,259 | 146,251 | 610,813 | 1,483,403 | 10,383,821 |
| -1 | -7 | -17 | -71 | -119 | -497 | -1,207 | -1,229 | -8,449 | -8,603 | -20,893 | -87,259 | -146,251 | -610,813 | -1,483,403 | -10,383,821 |
Here are some more numbers to try:
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