A:
Positive:
1 x 2111140155 x 422228037 x 3015914535 x 6031829193 x 1093855965 x 2187711351 x 1562656755 x 31253
Negative:
-1 x -211114015-5 x -42222803-7 x -30159145-35 x -6031829-193 x -1093855-965 x -218771-1351 x -156265-6755 x -31253
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 211,114,015, 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 | 211,114,015 | |
| -1 | -211,114,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,114,015.
Example:
1 x 211,114,015 = 211,114,015
and
-1 x -211,114,015 = 211,114,015
Notice both answers equal 211,114,015
With that explanation out of the way, let's continue. Next, we take the number 211,114,015 and divide it by 2:
211,114,015 ÷ 2 = 105,557,007.5
If the quotient is a whole number, then 2 and 105,557,007.5 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 | 211,114,015 | |
| -1 | -211,114,015 |
Now, we try dividing 211,114,015 by 3:
211,114,015 ÷ 3 = 70,371,338.3333
If the quotient is a whole number, then 3 and 70,371,338.3333 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 | 211,114,015 | |
| -1 | -211,114,015 |
Let's try dividing by 4:
211,114,015 ÷ 4 = 52,778,503.75
If the quotient is a whole number, then 4 and 52,778,503.75 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 | 211,114,015 | |
| -1 | 211,114,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 193 | 965 | 1,351 | 6,755 | 31,253 | 156,265 | 218,771 | 1,093,855 | 6,031,829 | 30,159,145 | 42,222,803 | 211,114,015 |
| -1 | -5 | -7 | -35 | -193 | -965 | -1,351 | -6,755 | -31,253 | -156,265 | -218,771 | -1,093,855 | -6,031,829 | -30,159,145 | -42,222,803 | -211,114,015 |
Here are some more numbers to try:
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