A:
Positive:
1 x 660476055 x 1320952113 x 508058523 x 287163565 x 1016117115 x 574327299 x 2208951495 x 44179
Negative:
-1 x -66047605-5 x -13209521-13 x -5080585-23 x -2871635-65 x -1016117-115 x -574327-299 x -220895-1495 x -44179
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 66,047,605, 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 | 66,047,605 | |
| -1 | -66,047,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,047,605.
Example:
1 x 66,047,605 = 66,047,605
and
-1 x -66,047,605 = 66,047,605
Notice both answers equal 66,047,605
With that explanation out of the way, let's continue. Next, we take the number 66,047,605 and divide it by 2:
66,047,605 ÷ 2 = 33,023,802.5
If the quotient is a whole number, then 2 and 33,023,802.5 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 | 66,047,605 | |
| -1 | -66,047,605 |
Now, we try dividing 66,047,605 by 3:
66,047,605 ÷ 3 = 22,015,868.3333
If the quotient is a whole number, then 3 and 22,015,868.3333 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 | 66,047,605 | |
| -1 | -66,047,605 |
Let's try dividing by 4:
66,047,605 ÷ 4 = 16,511,901.25
If the quotient is a whole number, then 4 and 16,511,901.25 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 | 66,047,605 | |
| -1 | 66,047,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 44,179 | 220,895 | 574,327 | 1,016,117 | 2,871,635 | 5,080,585 | 13,209,521 | 66,047,605 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -44,179 | -220,895 | -574,327 | -1,016,117 | -2,871,635 | -5,080,585 | -13,209,521 | -66,047,605 |
Here are some more numbers to try:
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