A:
Positive:
1 x 381544911 x 34685931 x 12307967 x 56947167 x 22847341 x 11189737 x 51771837 x 2077
Negative:
-1 x -3815449-11 x -346859-31 x -123079-67 x -56947-167 x -22847-341 x -11189-737 x -5177-1837 x -2077
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 3,815,449, 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 | 3,815,449 | |
| -1 | -3,815,449 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,815,449.
Example:
1 x 3,815,449 = 3,815,449
and
-1 x -3,815,449 = 3,815,449
Notice both answers equal 3,815,449
With that explanation out of the way, let's continue. Next, we take the number 3,815,449 and divide it by 2:
3,815,449 ÷ 2 = 1,907,724.5
If the quotient is a whole number, then 2 and 1,907,724.5 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 | 3,815,449 | |
| -1 | -3,815,449 |
Now, we try dividing 3,815,449 by 3:
3,815,449 ÷ 3 = 1,271,816.3333
If the quotient is a whole number, then 3 and 1,271,816.3333 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 | 3,815,449 | |
| -1 | -3,815,449 |
Let's try dividing by 4:
3,815,449 ÷ 4 = 953,862.25
If the quotient is a whole number, then 4 and 953,862.25 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 | 3,815,449 | |
| -1 | 3,815,449 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 67 | 167 | 341 | 737 | 1,837 | 2,077 | 5,177 | 11,189 | 22,847 | 56,947 | 123,079 | 346,859 | 3,815,449 |
| -1 | -11 | -31 | -67 | -167 | -341 | -737 | -1,837 | -2,077 | -5,177 | -11,189 | -22,847 | -56,947 | -123,079 | -346,859 | -3,815,449 |
Here are some more numbers to try:
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