A:
Positive:
1 x 1202508022 x 601254017 x 1717868614 x 858934349 x 245409898 x 1227049101 x 1190602202 x 595301707 x 1700861414 x 850434949 x 242989898 x 12149
Negative:
-1 x -120250802-2 x -60125401-7 x -17178686-14 x -8589343-49 x -2454098-98 x -1227049-101 x -1190602-202 x -595301-707 x -170086-1414 x -85043-4949 x -24298-9898 x -12149
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 120,250,802, 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 | 120,250,802 | |
| -1 | -120,250,802 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,250,802.
Example:
1 x 120,250,802 = 120,250,802
and
-1 x -120,250,802 = 120,250,802
Notice both answers equal 120,250,802
With that explanation out of the way, let's continue. Next, we take the number 120,250,802 and divide it by 2:
120,250,802 ÷ 2 = 60,125,401
If the quotient is a whole number, then 2 and 60,125,401 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 60,125,401 | 120,250,802 | |
| -1 | -2 | -60,125,401 | -120,250,802 |
Now, we try dividing 120,250,802 by 3:
120,250,802 ÷ 3 = 40,083,600.6667
If the quotient is a whole number, then 3 and 40,083,600.6667 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 | 2 | 60,125,401 | 120,250,802 | |
| -1 | -2 | -60,125,401 | -120,250,802 |
Let's try dividing by 4:
120,250,802 ÷ 4 = 30,062,700.5
If the quotient is a whole number, then 4 and 30,062,700.5 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 | 2 | 60,125,401 | 120,250,802 | |
| -1 | -2 | -60,125,401 | 120,250,802 |
If you did it right, you will end up with this table:
| 1 | 2 | 7 | 14 | 49 | 98 | 101 | 202 | 707 | 1,414 | 4,949 | 9,898 | 12,149 | 24,298 | 85,043 | 170,086 | 595,301 | 1,190,602 | 1,227,049 | 2,454,098 | 8,589,343 | 17,178,686 | 60,125,401 | 120,250,802 |
| -1 | -2 | -7 | -14 | -49 | -98 | -101 | -202 | -707 | -1,414 | -4,949 | -9,898 | -12,149 | -24,298 | -85,043 | -170,086 | -595,301 | -1,190,602 | -1,227,049 | -2,454,098 | -8,589,343 | -17,178,686 | -60,125,401 | -120,250,802 |
Here are some more numbers to try:
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