A:
Positive:
1 x 16650663711 x 1513696723 x 723941961 x 2729617253 x 658129671 x 2481471403 x 11867910789 x 15433
Negative:
-1 x -166506637-11 x -15136967-23 x -7239419-61 x -2729617-253 x -658129-671 x -248147-1403 x -118679-10789 x -15433
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 166,506,637, 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 | 166,506,637 | |
| -1 | -166,506,637 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,506,637.
Example:
1 x 166,506,637 = 166,506,637
and
-1 x -166,506,637 = 166,506,637
Notice both answers equal 166,506,637
With that explanation out of the way, let's continue. Next, we take the number 166,506,637 and divide it by 2:
166,506,637 ÷ 2 = 83,253,318.5
If the quotient is a whole number, then 2 and 83,253,318.5 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 | 166,506,637 | |
| -1 | -166,506,637 |
Now, we try dividing 166,506,637 by 3:
166,506,637 ÷ 3 = 55,502,212.3333
If the quotient is a whole number, then 3 and 55,502,212.3333 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 | 166,506,637 | |
| -1 | -166,506,637 |
Let's try dividing by 4:
166,506,637 ÷ 4 = 41,626,659.25
If the quotient is a whole number, then 4 and 41,626,659.25 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 | 166,506,637 | |
| -1 | 166,506,637 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 61 | 253 | 671 | 1,403 | 10,789 | 15,433 | 118,679 | 248,147 | 658,129 | 2,729,617 | 7,239,419 | 15,136,967 | 166,506,637 |
| -1 | -11 | -23 | -61 | -253 | -671 | -1,403 | -10,789 | -15,433 | -118,679 | -248,147 | -658,129 | -2,729,617 | -7,239,419 | -15,136,967 | -166,506,637 |
Here are some more numbers to try:
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