A:
Positive:
1 x 84728055 x 169456111 x 77025555 x 154051127 x 66715635 x 133431213 x 69851397 x 6065
Negative:
-1 x -8472805-5 x -1694561-11 x -770255-55 x -154051-127 x -66715-635 x -13343-1213 x -6985-1397 x -6065
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 8,472,805, 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 | 8,472,805 | |
| -1 | -8,472,805 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,472,805.
Example:
1 x 8,472,805 = 8,472,805
and
-1 x -8,472,805 = 8,472,805
Notice both answers equal 8,472,805
With that explanation out of the way, let's continue. Next, we take the number 8,472,805 and divide it by 2:
8,472,805 ÷ 2 = 4,236,402.5
If the quotient is a whole number, then 2 and 4,236,402.5 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 | 8,472,805 | |
| -1 | -8,472,805 |
Now, we try dividing 8,472,805 by 3:
8,472,805 ÷ 3 = 2,824,268.3333
If the quotient is a whole number, then 3 and 2,824,268.3333 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 | 8,472,805 | |
| -1 | -8,472,805 |
Let's try dividing by 4:
8,472,805 ÷ 4 = 2,118,201.25
If the quotient is a whole number, then 4 and 2,118,201.25 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 | 8,472,805 | |
| -1 | 8,472,805 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 127 | 635 | 1,213 | 1,397 | 6,065 | 6,985 | 13,343 | 66,715 | 154,051 | 770,255 | 1,694,561 | 8,472,805 |
| -1 | -5 | -11 | -55 | -127 | -635 | -1,213 | -1,397 | -6,065 | -6,985 | -13,343 | -66,715 | -154,051 | -770,255 | -1,694,561 | -8,472,805 |
Here are some more numbers to try:
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