A:
Positive:
1 x 80836217 x 115480313 x 62181791 x 88831211 x 38311421 x 192011477 x 54732743 x 2947
Negative:
-1 x -8083621-7 x -1154803-13 x -621817-91 x -88831-211 x -38311-421 x -19201-1477 x -5473-2743 x -2947
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 8,083,621, 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 | 8,083,621 | |
| -1 | -8,083,621 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,083,621.
Example:
1 x 8,083,621 = 8,083,621
and
-1 x -8,083,621 = 8,083,621
Notice both answers equal 8,083,621
With that explanation out of the way, let's continue. Next, we take the number 8,083,621 and divide it by 2:
8,083,621 ÷ 2 = 4,041,810.5
If the quotient is a whole number, then 2 and 4,041,810.5 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 | 8,083,621 | |
| -1 | -8,083,621 |
Now, we try dividing 8,083,621 by 3:
8,083,621 ÷ 3 = 2,694,540.3333
If the quotient is a whole number, then 3 and 2,694,540.3333 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 | 8,083,621 | |
| -1 | -8,083,621 |
Let's try dividing by 4:
8,083,621 ÷ 4 = 2,020,905.25
If the quotient is a whole number, then 4 and 2,020,905.25 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 | 8,083,621 | |
| -1 | 8,083,621 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 211 | 421 | 1,477 | 2,743 | 2,947 | 5,473 | 19,201 | 38,311 | 88,831 | 621,817 | 1,154,803 | 8,083,621 |
| -1 | -7 | -13 | -91 | -211 | -421 | -1,477 | -2,743 | -2,947 | -5,473 | -19,201 | -38,311 | -88,831 | -621,817 | -1,154,803 | -8,083,621 |
Here are some more numbers to try:
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