A:
Positive:
1 x 1666424455 x 3332848919 x 877065595 x 1754131617 x 2700852843 x 586153085 x 5401711723 x 14215
Negative:
-1 x -166642445-5 x -33328489-19 x -8770655-95 x -1754131-617 x -270085-2843 x -58615-3085 x -54017-11723 x -14215
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 166,642,445, 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 | 166,642,445 | |
| -1 | -166,642,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,642,445.
Example:
1 x 166,642,445 = 166,642,445
and
-1 x -166,642,445 = 166,642,445
Notice both answers equal 166,642,445
With that explanation out of the way, let's continue. Next, we take the number 166,642,445 and divide it by 2:
166,642,445 ÷ 2 = 83,321,222.5
If the quotient is a whole number, then 2 and 83,321,222.5 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 | 166,642,445 | |
| -1 | -166,642,445 |
Now, we try dividing 166,642,445 by 3:
166,642,445 ÷ 3 = 55,547,481.6667
If the quotient is a whole number, then 3 and 55,547,481.6667 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 | 166,642,445 | |
| -1 | -166,642,445 |
Let's try dividing by 4:
166,642,445 ÷ 4 = 41,660,611.25
If the quotient is a whole number, then 4 and 41,660,611.25 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 | 166,642,445 | |
| -1 | 166,642,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 617 | 2,843 | 3,085 | 11,723 | 14,215 | 54,017 | 58,615 | 270,085 | 1,754,131 | 8,770,655 | 33,328,489 | 166,642,445 |
| -1 | -5 | -19 | -95 | -617 | -2,843 | -3,085 | -11,723 | -14,215 | -54,017 | -58,615 | -270,085 | -1,754,131 | -8,770,655 | -33,328,489 | -166,642,445 |
Here are some more numbers to try:
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