A:
Positive:
1 x 123138055 x 24627617 x 175911519 x 64809535 x 35182395 x 129619133 x 92585665 x 18517
Negative:
-1 x -12313805-5 x -2462761-7 x -1759115-19 x -648095-35 x -351823-95 x -129619-133 x -92585-665 x -18517
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 12,313,805, 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 | 12,313,805 | |
| -1 | -12,313,805 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,313,805.
Example:
1 x 12,313,805 = 12,313,805
and
-1 x -12,313,805 = 12,313,805
Notice both answers equal 12,313,805
With that explanation out of the way, let's continue. Next, we take the number 12,313,805 and divide it by 2:
12,313,805 ÷ 2 = 6,156,902.5
If the quotient is a whole number, then 2 and 6,156,902.5 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 | 12,313,805 | |
| -1 | -12,313,805 |
Now, we try dividing 12,313,805 by 3:
12,313,805 ÷ 3 = 4,104,601.6667
If the quotient is a whole number, then 3 and 4,104,601.6667 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 | 12,313,805 | |
| -1 | -12,313,805 |
Let's try dividing by 4:
12,313,805 ÷ 4 = 3,078,451.25
If the quotient is a whole number, then 4 and 3,078,451.25 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 | 12,313,805 | |
| -1 | 12,313,805 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 665 | 18,517 | 92,585 | 129,619 | 351,823 | 648,095 | 1,759,115 | 2,462,761 | 12,313,805 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -665 | -18,517 | -92,585 | -129,619 | -351,823 | -648,095 | -1,759,115 | -2,462,761 | -12,313,805 |
Here are some more numbers to try:
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