A:
Positive:
1 x 83783655 x 167567317 x 49284585 x 98569241 x 34765409 x 204851205 x 69532045 x 4097
Negative:
-1 x -8378365-5 x -1675673-17 x -492845-85 x -98569-241 x -34765-409 x -20485-1205 x -6953-2045 x -4097
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 8,378,365, 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 | 8,378,365 | |
| -1 | -8,378,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,378,365.
Example:
1 x 8,378,365 = 8,378,365
and
-1 x -8,378,365 = 8,378,365
Notice both answers equal 8,378,365
With that explanation out of the way, let's continue. Next, we take the number 8,378,365 and divide it by 2:
8,378,365 ÷ 2 = 4,189,182.5
If the quotient is a whole number, then 2 and 4,189,182.5 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 | 8,378,365 | |
| -1 | -8,378,365 |
Now, we try dividing 8,378,365 by 3:
8,378,365 ÷ 3 = 2,792,788.3333
If the quotient is a whole number, then 3 and 2,792,788.3333 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 | 8,378,365 | |
| -1 | -8,378,365 |
Let's try dividing by 4:
8,378,365 ÷ 4 = 2,094,591.25
If the quotient is a whole number, then 4 and 2,094,591.25 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 | 8,378,365 | |
| -1 | 8,378,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 241 | 409 | 1,205 | 2,045 | 4,097 | 6,953 | 20,485 | 34,765 | 98,569 | 492,845 | 1,675,673 | 8,378,365 |
| -1 | -5 | -17 | -85 | -241 | -409 | -1,205 | -2,045 | -4,097 | -6,953 | -20,485 | -34,765 | -98,569 | -492,845 | -1,675,673 | -8,378,365 |
Here are some more numbers to try:
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