A:
Positive:
1 x 664323555 x 1328647111 x 603930555 x 120786161 x 1089055305 x 217811671 x 990053355 x 19801
Negative:
-1 x -66432355-5 x -13286471-11 x -6039305-55 x -1207861-61 x -1089055-305 x -217811-671 x -99005-3355 x -19801
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 66,432,355, 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 | 66,432,355 | |
| -1 | -66,432,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,432,355.
Example:
1 x 66,432,355 = 66,432,355
and
-1 x -66,432,355 = 66,432,355
Notice both answers equal 66,432,355
With that explanation out of the way, let's continue. Next, we take the number 66,432,355 and divide it by 2:
66,432,355 ÷ 2 = 33,216,177.5
If the quotient is a whole number, then 2 and 33,216,177.5 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 | 66,432,355 | |
| -1 | -66,432,355 |
Now, we try dividing 66,432,355 by 3:
66,432,355 ÷ 3 = 22,144,118.3333
If the quotient is a whole number, then 3 and 22,144,118.3333 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 | 66,432,355 | |
| -1 | -66,432,355 |
Let's try dividing by 4:
66,432,355 ÷ 4 = 16,608,088.75
If the quotient is a whole number, then 4 and 16,608,088.75 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 | 66,432,355 | |
| -1 | 66,432,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 61 | 305 | 671 | 3,355 | 19,801 | 99,005 | 217,811 | 1,089,055 | 1,207,861 | 6,039,305 | 13,286,471 | 66,432,355 |
| -1 | -5 | -11 | -55 | -61 | -305 | -671 | -3,355 | -19,801 | -99,005 | -217,811 | -1,089,055 | -1,207,861 | -6,039,305 | -13,286,471 | -66,432,355 |
Here are some more numbers to try:
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