A:
Positive:
1 x 1666266777 x 2380381143 x 3875039241 x 691397301 x 5535771687 x 987712297 x 7254110363 x 16079
Negative:
-1 x -166626677-7 x -23803811-43 x -3875039-241 x -691397-301 x -553577-1687 x -98771-2297 x -72541-10363 x -16079
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 166,626,677, 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 | 166,626,677 | |
| -1 | -166,626,677 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,626,677.
Example:
1 x 166,626,677 = 166,626,677
and
-1 x -166,626,677 = 166,626,677
Notice both answers equal 166,626,677
With that explanation out of the way, let's continue. Next, we take the number 166,626,677 and divide it by 2:
166,626,677 ÷ 2 = 83,313,338.5
If the quotient is a whole number, then 2 and 83,313,338.5 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 | 166,626,677 | |
| -1 | -166,626,677 |
Now, we try dividing 166,626,677 by 3:
166,626,677 ÷ 3 = 55,542,225.6667
If the quotient is a whole number, then 3 and 55,542,225.6667 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 | 166,626,677 | |
| -1 | -166,626,677 |
Let's try dividing by 4:
166,626,677 ÷ 4 = 41,656,669.25
If the quotient is a whole number, then 4 and 41,656,669.25 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 | 166,626,677 | |
| -1 | 166,626,677 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 241 | 301 | 1,687 | 2,297 | 10,363 | 16,079 | 72,541 | 98,771 | 553,577 | 691,397 | 3,875,039 | 23,803,811 | 166,626,677 |
| -1 | -7 | -43 | -241 | -301 | -1,687 | -2,297 | -10,363 | -16,079 | -72,541 | -98,771 | -553,577 | -691,397 | -3,875,039 | -23,803,811 | -166,626,677 |
Here are some more numbers to try:
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