A:
Positive:
1 x 2023100313 x 155623117 x 119005931 x 652613221 x 91543403 x 50201527 x 383892953 x 6851
Negative:
-1 x -20231003-13 x -1556231-17 x -1190059-31 x -652613-221 x -91543-403 x -50201-527 x -38389-2953 x -6851
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 20,231,003, 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 | 20,231,003 | |
| -1 | -20,231,003 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,231,003.
Example:
1 x 20,231,003 = 20,231,003
and
-1 x -20,231,003 = 20,231,003
Notice both answers equal 20,231,003
With that explanation out of the way, let's continue. Next, we take the number 20,231,003 and divide it by 2:
20,231,003 ÷ 2 = 10,115,501.5
If the quotient is a whole number, then 2 and 10,115,501.5 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 | 20,231,003 | |
| -1 | -20,231,003 |
Now, we try dividing 20,231,003 by 3:
20,231,003 ÷ 3 = 6,743,667.6667
If the quotient is a whole number, then 3 and 6,743,667.6667 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 | 20,231,003 | |
| -1 | -20,231,003 |
Let's try dividing by 4:
20,231,003 ÷ 4 = 5,057,750.75
If the quotient is a whole number, then 4 and 5,057,750.75 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 | 20,231,003 | |
| -1 | 20,231,003 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 31 | 221 | 403 | 527 | 2,953 | 6,851 | 38,389 | 50,201 | 91,543 | 652,613 | 1,190,059 | 1,556,231 | 20,231,003 |
| -1 | -13 | -17 | -31 | -221 | -403 | -527 | -2,953 | -6,851 | -38,389 | -50,201 | -91,543 | -652,613 | -1,190,059 | -1,556,231 | -20,231,003 |
Here are some more numbers to try:
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