A:
Positive:
1 x 1177781155 x 235556237 x 1682544513 x 905985535 x 336508949 x 240363565 x 181197191 x 1294265245 x 480727455 x 258853637 x 1848953185 x 36979
Negative:
-1 x -117778115-5 x -23555623-7 x -16825445-13 x -9059855-35 x -3365089-49 x -2403635-65 x -1811971-91 x -1294265-245 x -480727-455 x -258853-637 x -184895-3185 x -36979
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 117,778,115, 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 | 117,778,115 | |
| -1 | -117,778,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 117,778,115.
Example:
1 x 117,778,115 = 117,778,115
and
-1 x -117,778,115 = 117,778,115
Notice both answers equal 117,778,115
With that explanation out of the way, let's continue. Next, we take the number 117,778,115 and divide it by 2:
117,778,115 ÷ 2 = 58,889,057.5
If the quotient is a whole number, then 2 and 58,889,057.5 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 | 117,778,115 | |
| -1 | -117,778,115 |
Now, we try dividing 117,778,115 by 3:
117,778,115 ÷ 3 = 39,259,371.6667
If the quotient is a whole number, then 3 and 39,259,371.6667 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 | 117,778,115 | |
| -1 | -117,778,115 |
Let's try dividing by 4:
117,778,115 ÷ 4 = 29,444,528.75
If the quotient is a whole number, then 4 and 29,444,528.75 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 | 117,778,115 | |
| -1 | 117,778,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 49 | 65 | 91 | 245 | 455 | 637 | 3,185 | 36,979 | 184,895 | 258,853 | 480,727 | 1,294,265 | 1,811,971 | 2,403,635 | 3,365,089 | 9,059,855 | 16,825,445 | 23,555,623 | 117,778,115 |
| -1 | -5 | -7 | -13 | -35 | -49 | -65 | -91 | -245 | -455 | -637 | -3,185 | -36,979 | -184,895 | -258,853 | -480,727 | -1,294,265 | -1,811,971 | -2,403,635 | -3,365,089 | -9,059,855 | -16,825,445 | -23,555,623 | -117,778,115 |
Here are some more numbers to try:
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