A:
Positive:
1 x 662405177 x 946293117 x 389650119 x 3486343119 x 556643133 x 498049323 x 2050792261 x 29297
Negative:
-1 x -66240517-7 x -9462931-17 x -3896501-19 x -3486343-119 x -556643-133 x -498049-323 x -205079-2261 x -29297
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 66,240,517, 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 | 66,240,517 | |
| -1 | -66,240,517 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,240,517.
Example:
1 x 66,240,517 = 66,240,517
and
-1 x -66,240,517 = 66,240,517
Notice both answers equal 66,240,517
With that explanation out of the way, let's continue. Next, we take the number 66,240,517 and divide it by 2:
66,240,517 ÷ 2 = 33,120,258.5
If the quotient is a whole number, then 2 and 33,120,258.5 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 | 66,240,517 | |
| -1 | -66,240,517 |
Now, we try dividing 66,240,517 by 3:
66,240,517 ÷ 3 = 22,080,172.3333
If the quotient is a whole number, then 3 and 22,080,172.3333 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 | 66,240,517 | |
| -1 | -66,240,517 |
Let's try dividing by 4:
66,240,517 ÷ 4 = 16,560,129.25
If the quotient is a whole number, then 4 and 16,560,129.25 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 | 66,240,517 | |
| -1 | 66,240,517 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 19 | 119 | 133 | 323 | 2,261 | 29,297 | 205,079 | 498,049 | 556,643 | 3,486,343 | 3,896,501 | 9,462,931 | 66,240,517 |
| -1 | -7 | -17 | -19 | -119 | -133 | -323 | -2,261 | -29,297 | -205,079 | -498,049 | -556,643 | -3,486,343 | -3,896,501 | -9,462,931 | -66,240,517 |
Here are some more numbers to try:
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