A:
Positive:
1 x 1032422055 x 2064844111 x 938565555 x 1877131569 x 1814452845 x 362893299 x 312956259 x 16495
Negative:
-1 x -103242205-5 x -20648441-11 x -9385655-55 x -1877131-569 x -181445-2845 x -36289-3299 x -31295-6259 x -16495
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 103,242,205, 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 | 103,242,205 | |
| -1 | -103,242,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 103,242,205.
Example:
1 x 103,242,205 = 103,242,205
and
-1 x -103,242,205 = 103,242,205
Notice both answers equal 103,242,205
With that explanation out of the way, let's continue. Next, we take the number 103,242,205 and divide it by 2:
103,242,205 ÷ 2 = 51,621,102.5
If the quotient is a whole number, then 2 and 51,621,102.5 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 | 103,242,205 | |
| -1 | -103,242,205 |
Now, we try dividing 103,242,205 by 3:
103,242,205 ÷ 3 = 34,414,068.3333
If the quotient is a whole number, then 3 and 34,414,068.3333 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 | 103,242,205 | |
| -1 | -103,242,205 |
Let's try dividing by 4:
103,242,205 ÷ 4 = 25,810,551.25
If the quotient is a whole number, then 4 and 25,810,551.25 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 | 103,242,205 | |
| -1 | 103,242,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 569 | 2,845 | 3,299 | 6,259 | 16,495 | 31,295 | 36,289 | 181,445 | 1,877,131 | 9,385,655 | 20,648,441 | 103,242,205 |
| -1 | -5 | -11 | -55 | -569 | -2,845 | -3,299 | -6,259 | -16,495 | -31,295 | -36,289 | -181,445 | -1,877,131 | -9,385,655 | -20,648,441 | -103,242,205 |
Here are some more numbers to try:
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