A:
Positive:
1 x 662844917 x 946921313 x 509880761 x 108663191 x 728401427 x 155233793 x 835875551 x 11941
Negative:
-1 x -66284491-7 x -9469213-13 x -5098807-61 x -1086631-91 x -728401-427 x -155233-793 x -83587-5551 x -11941
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 66,284,491, 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 | 66,284,491 | |
| -1 | -66,284,491 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,284,491.
Example:
1 x 66,284,491 = 66,284,491
and
-1 x -66,284,491 = 66,284,491
Notice both answers equal 66,284,491
With that explanation out of the way, let's continue. Next, we take the number 66,284,491 and divide it by 2:
66,284,491 ÷ 2 = 33,142,245.5
If the quotient is a whole number, then 2 and 33,142,245.5 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 | 66,284,491 | |
| -1 | -66,284,491 |
Now, we try dividing 66,284,491 by 3:
66,284,491 ÷ 3 = 22,094,830.3333
If the quotient is a whole number, then 3 and 22,094,830.3333 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 | 66,284,491 | |
| -1 | -66,284,491 |
Let's try dividing by 4:
66,284,491 ÷ 4 = 16,571,122.75
If the quotient is a whole number, then 4 and 16,571,122.75 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 | 66,284,491 | |
| -1 | 66,284,491 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 61 | 91 | 427 | 793 | 5,551 | 11,941 | 83,587 | 155,233 | 728,401 | 1,086,631 | 5,098,807 | 9,469,213 | 66,284,491 |
| -1 | -7 | -13 | -61 | -91 | -427 | -793 | -5,551 | -11,941 | -83,587 | -155,233 | -728,401 | -1,086,631 | -5,098,807 | -9,469,213 | -66,284,491 |
Here are some more numbers to try:
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