A:
Positive:
1 x 660621855 x 132124377 x 943745535 x 1887491353 x 1871451765 x 374292471 x 267355347 x 12355
Negative:
-1 x -66062185-5 x -13212437-7 x -9437455-35 x -1887491-353 x -187145-1765 x -37429-2471 x -26735-5347 x -12355
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 66,062,185, 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 | 66,062,185 | |
| -1 | -66,062,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,062,185.
Example:
1 x 66,062,185 = 66,062,185
and
-1 x -66,062,185 = 66,062,185
Notice both answers equal 66,062,185
With that explanation out of the way, let's continue. Next, we take the number 66,062,185 and divide it by 2:
66,062,185 ÷ 2 = 33,031,092.5
If the quotient is a whole number, then 2 and 33,031,092.5 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 | 66,062,185 | |
| -1 | -66,062,185 |
Now, we try dividing 66,062,185 by 3:
66,062,185 ÷ 3 = 22,020,728.3333
If the quotient is a whole number, then 3 and 22,020,728.3333 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 | 66,062,185 | |
| -1 | -66,062,185 |
Let's try dividing by 4:
66,062,185 ÷ 4 = 16,515,546.25
If the quotient is a whole number, then 4 and 16,515,546.25 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 | 66,062,185 | |
| -1 | 66,062,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 353 | 1,765 | 2,471 | 5,347 | 12,355 | 26,735 | 37,429 | 187,145 | 1,887,491 | 9,437,455 | 13,212,437 | 66,062,185 |
| -1 | -5 | -7 | -35 | -353 | -1,765 | -2,471 | -5,347 | -12,355 | -26,735 | -37,429 | -187,145 | -1,887,491 | -9,437,455 | -13,212,437 | -66,062,185 |
Here are some more numbers to try:
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