A:
Positive:
1 x 666223755 x 1332447523 x 289662525 x 2664895115 x 579325125 x 532979575 x 1158652875 x 23173
Negative:
-1 x -66622375-5 x -13324475-23 x -2896625-25 x -2664895-115 x -579325-125 x -532979-575 x -115865-2875 x -23173
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 66,622,375, 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 | 66,622,375 | |
| -1 | -66,622,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,622,375.
Example:
1 x 66,622,375 = 66,622,375
and
-1 x -66,622,375 = 66,622,375
Notice both answers equal 66,622,375
With that explanation out of the way, let's continue. Next, we take the number 66,622,375 and divide it by 2:
66,622,375 ÷ 2 = 33,311,187.5
If the quotient is a whole number, then 2 and 33,311,187.5 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 | 66,622,375 | |
| -1 | -66,622,375 |
Now, we try dividing 66,622,375 by 3:
66,622,375 ÷ 3 = 22,207,458.3333
If the quotient is a whole number, then 3 and 22,207,458.3333 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 | 66,622,375 | |
| -1 | -66,622,375 |
Let's try dividing by 4:
66,622,375 ÷ 4 = 16,655,593.75
If the quotient is a whole number, then 4 and 16,655,593.75 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 | 66,622,375 | |
| -1 | 66,622,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 25 | 115 | 125 | 575 | 2,875 | 23,173 | 115,865 | 532,979 | 579,325 | 2,664,895 | 2,896,625 | 13,324,475 | 66,622,375 |
| -1 | -5 | -23 | -25 | -115 | -125 | -575 | -2,875 | -23,173 | -115,865 | -532,979 | -579,325 | -2,664,895 | -2,896,625 | -13,324,475 | -66,622,375 |
Here are some more numbers to try:
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