A:
Positive:
1 x 150610255 x 30122057 x 215157525 x 60244135 x 43031589 x 169225175 x 86063445 x 33845623 x 24175967 x 155752225 x 67693115 x 4835
Negative:
-1 x -15061025-5 x -3012205-7 x -2151575-25 x -602441-35 x -430315-89 x -169225-175 x -86063-445 x -33845-623 x -24175-967 x -15575-2225 x -6769-3115 x -4835
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 15,061,025, 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 | 15,061,025 | |
| -1 | -15,061,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,061,025.
Example:
1 x 15,061,025 = 15,061,025
and
-1 x -15,061,025 = 15,061,025
Notice both answers equal 15,061,025
With that explanation out of the way, let's continue. Next, we take the number 15,061,025 and divide it by 2:
15,061,025 ÷ 2 = 7,530,512.5
If the quotient is a whole number, then 2 and 7,530,512.5 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 | 15,061,025 | |
| -1 | -15,061,025 |
Now, we try dividing 15,061,025 by 3:
15,061,025 ÷ 3 = 5,020,341.6667
If the quotient is a whole number, then 3 and 5,020,341.6667 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 | 15,061,025 | |
| -1 | -15,061,025 |
Let's try dividing by 4:
15,061,025 ÷ 4 = 3,765,256.25
If the quotient is a whole number, then 4 and 3,765,256.25 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 | 15,061,025 | |
| -1 | 15,061,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 89 | 175 | 445 | 623 | 967 | 2,225 | 3,115 | 4,835 | 6,769 | 15,575 | 24,175 | 33,845 | 86,063 | 169,225 | 430,315 | 602,441 | 2,151,575 | 3,012,205 | 15,061,025 |
| -1 | -5 | -7 | -25 | -35 | -89 | -175 | -445 | -623 | -967 | -2,225 | -3,115 | -4,835 | -6,769 | -15,575 | -24,175 | -33,845 | -86,063 | -169,225 | -430,315 | -602,441 | -2,151,575 | -3,012,205 | -15,061,025 |
Here are some more numbers to try:
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