A:
Positive:
1 x 1211320319 x 63753723 x 52666153 x 228551437 x 27719523 x 231611007 x 120291219 x 9937
Negative:
-1 x -12113203-19 x -637537-23 x -526661-53 x -228551-437 x -27719-523 x -23161-1007 x -12029-1219 x -9937
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 12,113,203, 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 | 12,113,203 | |
| -1 | -12,113,203 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,113,203.
Example:
1 x 12,113,203 = 12,113,203
and
-1 x -12,113,203 = 12,113,203
Notice both answers equal 12,113,203
With that explanation out of the way, let's continue. Next, we take the number 12,113,203 and divide it by 2:
12,113,203 ÷ 2 = 6,056,601.5
If the quotient is a whole number, then 2 and 6,056,601.5 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 | 12,113,203 | |
| -1 | -12,113,203 |
Now, we try dividing 12,113,203 by 3:
12,113,203 ÷ 3 = 4,037,734.3333
If the quotient is a whole number, then 3 and 4,037,734.3333 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 | 12,113,203 | |
| -1 | -12,113,203 |
Let's try dividing by 4:
12,113,203 ÷ 4 = 3,028,300.75
If the quotient is a whole number, then 4 and 3,028,300.75 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 | 12,113,203 | |
| -1 | 12,113,203 |
If you did it right, you will end up with this table:
| 1 | 19 | 23 | 53 | 437 | 523 | 1,007 | 1,219 | 9,937 | 12,029 | 23,161 | 27,719 | 228,551 | 526,661 | 637,537 | 12,113,203 |
| -1 | -19 | -23 | -53 | -437 | -523 | -1,007 | -1,219 | -9,937 | -12,029 | -23,161 | -27,719 | -228,551 | -526,661 | -637,537 | -12,113,203 |
Here are some more numbers to try:
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