A:
Positive:
1 x 1004863097 x 1435518711 x 913511949 x 205074177 x 1305017343 x 292963539 x 1864313773 x 26633
Negative:
-1 x -100486309-7 x -14355187-11 x -9135119-49 x -2050741-77 x -1305017-343 x -292963-539 x -186431-3773 x -26633
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 100,486,309, 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 | 100,486,309 | |
| -1 | -100,486,309 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 100,486,309.
Example:
1 x 100,486,309 = 100,486,309
and
-1 x -100,486,309 = 100,486,309
Notice both answers equal 100,486,309
With that explanation out of the way, let's continue. Next, we take the number 100,486,309 and divide it by 2:
100,486,309 ÷ 2 = 50,243,154.5
If the quotient is a whole number, then 2 and 50,243,154.5 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 | 100,486,309 | |
| -1 | -100,486,309 |
Now, we try dividing 100,486,309 by 3:
100,486,309 ÷ 3 = 33,495,436.3333
If the quotient is a whole number, then 3 and 33,495,436.3333 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 | 100,486,309 | |
| -1 | -100,486,309 |
Let's try dividing by 4:
100,486,309 ÷ 4 = 25,121,577.25
If the quotient is a whole number, then 4 and 25,121,577.25 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 | 100,486,309 | |
| -1 | 100,486,309 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 343 | 539 | 3,773 | 26,633 | 186,431 | 292,963 | 1,305,017 | 2,050,741 | 9,135,119 | 14,355,187 | 100,486,309 |
| -1 | -7 | -11 | -49 | -77 | -343 | -539 | -3,773 | -26,633 | -186,431 | -292,963 | -1,305,017 | -2,050,741 | -9,135,119 | -14,355,187 | -100,486,309 |
Here are some more numbers to try:
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