A:
Positive:
1 x 1542405555 x 308481117 x 2203436535 x 4406873773 x 1995353865 x 399075411 x 285055701 x 27055
Negative:
-1 x -154240555-5 x -30848111-7 x -22034365-35 x -4406873-773 x -199535-3865 x -39907-5411 x -28505-5701 x -27055
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 154,240,555, 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 | 154,240,555 | |
| -1 | -154,240,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,240,555.
Example:
1 x 154,240,555 = 154,240,555
and
-1 x -154,240,555 = 154,240,555
Notice both answers equal 154,240,555
With that explanation out of the way, let's continue. Next, we take the number 154,240,555 and divide it by 2:
154,240,555 ÷ 2 = 77,120,277.5
If the quotient is a whole number, then 2 and 77,120,277.5 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 | 154,240,555 | |
| -1 | -154,240,555 |
Now, we try dividing 154,240,555 by 3:
154,240,555 ÷ 3 = 51,413,518.3333
If the quotient is a whole number, then 3 and 51,413,518.3333 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 | 154,240,555 | |
| -1 | -154,240,555 |
Let's try dividing by 4:
154,240,555 ÷ 4 = 38,560,138.75
If the quotient is a whole number, then 4 and 38,560,138.75 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 | 154,240,555 | |
| -1 | 154,240,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 773 | 3,865 | 5,411 | 5,701 | 27,055 | 28,505 | 39,907 | 199,535 | 4,406,873 | 22,034,365 | 30,848,111 | 154,240,555 |
| -1 | -5 | -7 | -35 | -773 | -3,865 | -5,411 | -5,701 | -27,055 | -28,505 | -39,907 | -199,535 | -4,406,873 | -22,034,365 | -30,848,111 | -154,240,555 |
Here are some more numbers to try:
Try the factor calculator