A:
Positive:
1 x 241801555 x 483603131 x 78000573 x 331235155 x 156001365 x 662472137 x 113152263 x 10685
Negative:
-1 x -24180155-5 x -4836031-31 x -780005-73 x -331235-155 x -156001-365 x -66247-2137 x -11315-2263 x -10685
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 24,180,155, 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 | 24,180,155 | |
| -1 | -24,180,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,180,155.
Example:
1 x 24,180,155 = 24,180,155
and
-1 x -24,180,155 = 24,180,155
Notice both answers equal 24,180,155
With that explanation out of the way, let's continue. Next, we take the number 24,180,155 and divide it by 2:
24,180,155 ÷ 2 = 12,090,077.5
If the quotient is a whole number, then 2 and 12,090,077.5 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 | 24,180,155 | |
| -1 | -24,180,155 |
Now, we try dividing 24,180,155 by 3:
24,180,155 ÷ 3 = 8,060,051.6667
If the quotient is a whole number, then 3 and 8,060,051.6667 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 | 24,180,155 | |
| -1 | -24,180,155 |
Let's try dividing by 4:
24,180,155 ÷ 4 = 6,045,038.75
If the quotient is a whole number, then 4 and 6,045,038.75 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 | 24,180,155 | |
| -1 | 24,180,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 73 | 155 | 365 | 2,137 | 2,263 | 10,685 | 11,315 | 66,247 | 156,001 | 331,235 | 780,005 | 4,836,031 | 24,180,155 |
| -1 | -5 | -31 | -73 | -155 | -365 | -2,137 | -2,263 | -10,685 | -11,315 | -66,247 | -156,001 | -331,235 | -780,005 | -4,836,031 | -24,180,155 |
Here are some more numbers to try:
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