A:
Positive:
1 x 1107200155 x 221440037 x 1581714535 x 316342947 x 2355745235 x 471149329 x 3365351645 x 67307
Negative:
-1 x -110720015-5 x -22144003-7 x -15817145-35 x -3163429-47 x -2355745-235 x -471149-329 x -336535-1645 x -67307
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 110,720,015, 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 | 110,720,015 | |
| -1 | -110,720,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 110,720,015.
Example:
1 x 110,720,015 = 110,720,015
and
-1 x -110,720,015 = 110,720,015
Notice both answers equal 110,720,015
With that explanation out of the way, let's continue. Next, we take the number 110,720,015 and divide it by 2:
110,720,015 ÷ 2 = 55,360,007.5
If the quotient is a whole number, then 2 and 55,360,007.5 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 | 110,720,015 | |
| -1 | -110,720,015 |
Now, we try dividing 110,720,015 by 3:
110,720,015 ÷ 3 = 36,906,671.6667
If the quotient is a whole number, then 3 and 36,906,671.6667 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 | 110,720,015 | |
| -1 | -110,720,015 |
Let's try dividing by 4:
110,720,015 ÷ 4 = 27,680,003.75
If the quotient is a whole number, then 4 and 27,680,003.75 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 | 110,720,015 | |
| -1 | 110,720,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 47 | 235 | 329 | 1,645 | 67,307 | 336,535 | 471,149 | 2,355,745 | 3,163,429 | 15,817,145 | 22,144,003 | 110,720,015 |
| -1 | -5 | -7 | -35 | -47 | -235 | -329 | -1,645 | -67,307 | -336,535 | -471,149 | -2,355,745 | -3,163,429 | -15,817,145 | -22,144,003 | -110,720,015 |
Here are some more numbers to try:
Try the factor calculator