A:
Positive:
1 x 151022655 x 302045383 x 181955151 x 100015241 x 62665415 x 36391755 x 200031205 x 12533
Negative:
-1 x -15102265-5 x -3020453-83 x -181955-151 x -100015-241 x -62665-415 x -36391-755 x -20003-1205 x -12533
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 15,102,265, 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 | 15,102,265 | |
| -1 | -15,102,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,102,265.
Example:
1 x 15,102,265 = 15,102,265
and
-1 x -15,102,265 = 15,102,265
Notice both answers equal 15,102,265
With that explanation out of the way, let's continue. Next, we take the number 15,102,265 and divide it by 2:
15,102,265 ÷ 2 = 7,551,132.5
If the quotient is a whole number, then 2 and 7,551,132.5 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 | 15,102,265 | |
| -1 | -15,102,265 |
Now, we try dividing 15,102,265 by 3:
15,102,265 ÷ 3 = 5,034,088.3333
If the quotient is a whole number, then 3 and 5,034,088.3333 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 | 15,102,265 | |
| -1 | -15,102,265 |
Let's try dividing by 4:
15,102,265 ÷ 4 = 3,775,566.25
If the quotient is a whole number, then 4 and 3,775,566.25 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 | 15,102,265 | |
| -1 | 15,102,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 151 | 241 | 415 | 755 | 1,205 | 12,533 | 20,003 | 36,391 | 62,665 | 100,015 | 181,955 | 3,020,453 | 15,102,265 |
| -1 | -5 | -83 | -151 | -241 | -415 | -755 | -1,205 | -12,533 | -20,003 | -36,391 | -62,665 | -100,015 | -181,955 | -3,020,453 | -15,102,265 |
Here are some more numbers to try:
Try the factor calculator