A:
Positive:
1 x 665266455 x 1330532967 x 99293571 x 936995335 x 198587355 x 1873992797 x 237854757 x 13985
Negative:
-1 x -66526645-5 x -13305329-67 x -992935-71 x -936995-335 x -198587-355 x -187399-2797 x -23785-4757 x -13985
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 66,526,645, 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 | 66,526,645 | |
| -1 | -66,526,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,526,645.
Example:
1 x 66,526,645 = 66,526,645
and
-1 x -66,526,645 = 66,526,645
Notice both answers equal 66,526,645
With that explanation out of the way, let's continue. Next, we take the number 66,526,645 and divide it by 2:
66,526,645 ÷ 2 = 33,263,322.5
If the quotient is a whole number, then 2 and 33,263,322.5 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 | 66,526,645 | |
| -1 | -66,526,645 |
Now, we try dividing 66,526,645 by 3:
66,526,645 ÷ 3 = 22,175,548.3333
If the quotient is a whole number, then 3 and 22,175,548.3333 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 | 66,526,645 | |
| -1 | -66,526,645 |
Let's try dividing by 4:
66,526,645 ÷ 4 = 16,631,661.25
If the quotient is a whole number, then 4 and 16,631,661.25 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 | 66,526,645 | |
| -1 | 66,526,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 71 | 335 | 355 | 2,797 | 4,757 | 13,985 | 23,785 | 187,399 | 198,587 | 936,995 | 992,935 | 13,305,329 | 66,526,645 |
| -1 | -5 | -67 | -71 | -335 | -355 | -2,797 | -4,757 | -13,985 | -23,785 | -187,399 | -198,587 | -936,995 | -992,935 | -13,305,329 | -66,526,645 |
Here are some more numbers to try:
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