A:
Positive:
1 x 643244055 x 1286488119 x 338549595 x 677099211 x 3048551055 x 609713209 x 200454009 x 16045
Negative:
-1 x -64324405-5 x -12864881-19 x -3385495-95 x -677099-211 x -304855-1055 x -60971-3209 x -20045-4009 x -16045
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 64,324,405, 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 | 64,324,405 | |
| -1 | -64,324,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,324,405.
Example:
1 x 64,324,405 = 64,324,405
and
-1 x -64,324,405 = 64,324,405
Notice both answers equal 64,324,405
With that explanation out of the way, let's continue. Next, we take the number 64,324,405 and divide it by 2:
64,324,405 ÷ 2 = 32,162,202.5
If the quotient is a whole number, then 2 and 32,162,202.5 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 | 64,324,405 | |
| -1 | -64,324,405 |
Now, we try dividing 64,324,405 by 3:
64,324,405 ÷ 3 = 21,441,468.3333
If the quotient is a whole number, then 3 and 21,441,468.3333 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 | 64,324,405 | |
| -1 | -64,324,405 |
Let's try dividing by 4:
64,324,405 ÷ 4 = 16,081,101.25
If the quotient is a whole number, then 4 and 16,081,101.25 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 | 64,324,405 | |
| -1 | 64,324,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 211 | 1,055 | 3,209 | 4,009 | 16,045 | 20,045 | 60,971 | 304,855 | 677,099 | 3,385,495 | 12,864,881 | 64,324,405 |
| -1 | -5 | -19 | -95 | -211 | -1,055 | -3,209 | -4,009 | -16,045 | -20,045 | -60,971 | -304,855 | -677,099 | -3,385,495 | -12,864,881 | -64,324,405 |
Here are some more numbers to try:
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