A:
Positive:
1 x 2031111255 x 406222257 x 2901587525 x 812444535 x 580317549 x 4145125125 x 1624889175 x 1160635245 x 829025875 x 2321271225 x 1658056125 x 33161
Negative:
-1 x -203111125-5 x -40622225-7 x -29015875-25 x -8124445-35 x -5803175-49 x -4145125-125 x -1624889-175 x -1160635-245 x -829025-875 x -232127-1225 x -165805-6125 x -33161
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 203,111,125, 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 | 203,111,125 | |
| -1 | -203,111,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,111,125.
Example:
1 x 203,111,125 = 203,111,125
and
-1 x -203,111,125 = 203,111,125
Notice both answers equal 203,111,125
With that explanation out of the way, let's continue. Next, we take the number 203,111,125 and divide it by 2:
203,111,125 ÷ 2 = 101,555,562.5
If the quotient is a whole number, then 2 and 101,555,562.5 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 | 203,111,125 | |
| -1 | -203,111,125 |
Now, we try dividing 203,111,125 by 3:
203,111,125 ÷ 3 = 67,703,708.3333
If the quotient is a whole number, then 3 and 67,703,708.3333 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 | 203,111,125 | |
| -1 | -203,111,125 |
Let's try dividing by 4:
203,111,125 ÷ 4 = 50,777,781.25
If the quotient is a whole number, then 4 and 50,777,781.25 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 | 203,111,125 | |
| -1 | 203,111,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 49 | 125 | 175 | 245 | 875 | 1,225 | 6,125 | 33,161 | 165,805 | 232,127 | 829,025 | 1,160,635 | 1,624,889 | 4,145,125 | 5,803,175 | 8,124,445 | 29,015,875 | 40,622,225 | 203,111,125 |
| -1 | -5 | -7 | -25 | -35 | -49 | -125 | -175 | -245 | -875 | -1,225 | -6,125 | -33,161 | -165,805 | -232,127 | -829,025 | -1,160,635 | -1,624,889 | -4,145,125 | -5,803,175 | -8,124,445 | -29,015,875 | -40,622,225 | -203,111,125 |
Here are some more numbers to try:
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