A:
Positive:
1 x 1032400155 x 2064800319 x 543368595 x 1086737293 x 3523551465 x 704713709 x 278355567 x 18545
Negative:
-1 x -103240015-5 x -20648003-19 x -5433685-95 x -1086737-293 x -352355-1465 x -70471-3709 x -27835-5567 x -18545
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 103,240,015, 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 | 103,240,015 | |
| -1 | -103,240,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 103,240,015.
Example:
1 x 103,240,015 = 103,240,015
and
-1 x -103,240,015 = 103,240,015
Notice both answers equal 103,240,015
With that explanation out of the way, let's continue. Next, we take the number 103,240,015 and divide it by 2:
103,240,015 ÷ 2 = 51,620,007.5
If the quotient is a whole number, then 2 and 51,620,007.5 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 | 103,240,015 | |
| -1 | -103,240,015 |
Now, we try dividing 103,240,015 by 3:
103,240,015 ÷ 3 = 34,413,338.3333
If the quotient is a whole number, then 3 and 34,413,338.3333 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 | 103,240,015 | |
| -1 | -103,240,015 |
Let's try dividing by 4:
103,240,015 ÷ 4 = 25,810,003.75
If the quotient is a whole number, then 4 and 25,810,003.75 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 | 103,240,015 | |
| -1 | 103,240,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 293 | 1,465 | 3,709 | 5,567 | 18,545 | 27,835 | 70,471 | 352,355 | 1,086,737 | 5,433,685 | 20,648,003 | 103,240,015 |
| -1 | -5 | -19 | -95 | -293 | -1,465 | -3,709 | -5,567 | -18,545 | -27,835 | -70,471 | -352,355 | -1,086,737 | -5,433,685 | -20,648,003 | -103,240,015 |
Here are some more numbers to try:
Try the factor calculator