A:
Positive:
1 x 1230415555 x 246083117 x 1757736513 x 946473535 x 351547365 x 189294791 x 1352105455 x 270421
Negative:
-1 x -123041555-5 x -24608311-7 x -17577365-13 x -9464735-35 x -3515473-65 x -1892947-91 x -1352105-455 x -270421
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 123,041,555, 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 | 123,041,555 | |
| -1 | -123,041,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,041,555.
Example:
1 x 123,041,555 = 123,041,555
and
-1 x -123,041,555 = 123,041,555
Notice both answers equal 123,041,555
With that explanation out of the way, let's continue. Next, we take the number 123,041,555 and divide it by 2:
123,041,555 ÷ 2 = 61,520,777.5
If the quotient is a whole number, then 2 and 61,520,777.5 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 | 123,041,555 | |
| -1 | -123,041,555 |
Now, we try dividing 123,041,555 by 3:
123,041,555 ÷ 3 = 41,013,851.6667
If the quotient is a whole number, then 3 and 41,013,851.6667 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 | 123,041,555 | |
| -1 | -123,041,555 |
Let's try dividing by 4:
123,041,555 ÷ 4 = 30,760,388.75
If the quotient is a whole number, then 4 and 30,760,388.75 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 | 123,041,555 | |
| -1 | 123,041,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 270,421 | 1,352,105 | 1,892,947 | 3,515,473 | 9,464,735 | 17,577,365 | 24,608,311 | 123,041,555 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -270,421 | -1,352,105 | -1,892,947 | -3,515,473 | -9,464,735 | -17,577,365 | -24,608,311 | -123,041,555 |
Here are some more numbers to try:
Try the factor calculator