A:
Positive:
1 x 71370255 x 14274057 x 101957517 x 41982525 x 28548135 x 20391585 x 83965119 x 59975175 x 40783425 x 16793595 x 119952399 x 2975
Negative:
-1 x -7137025-5 x -1427405-7 x -1019575-17 x -419825-25 x -285481-35 x -203915-85 x -83965-119 x -59975-175 x -40783-425 x -16793-595 x -11995-2399 x -2975
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 7,137,025, 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 | 7,137,025 | |
| -1 | -7,137,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,137,025.
Example:
1 x 7,137,025 = 7,137,025
and
-1 x -7,137,025 = 7,137,025
Notice both answers equal 7,137,025
With that explanation out of the way, let's continue. Next, we take the number 7,137,025 and divide it by 2:
7,137,025 ÷ 2 = 3,568,512.5
If the quotient is a whole number, then 2 and 3,568,512.5 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 | 7,137,025 | |
| -1 | -7,137,025 |
Now, we try dividing 7,137,025 by 3:
7,137,025 ÷ 3 = 2,379,008.3333
If the quotient is a whole number, then 3 and 2,379,008.3333 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 | 7,137,025 | |
| -1 | -7,137,025 |
Let's try dividing by 4:
7,137,025 ÷ 4 = 1,784,256.25
If the quotient is a whole number, then 4 and 1,784,256.25 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 | 7,137,025 | |
| -1 | 7,137,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 25 | 35 | 85 | 119 | 175 | 425 | 595 | 2,399 | 2,975 | 11,995 | 16,793 | 40,783 | 59,975 | 83,965 | 203,915 | 285,481 | 419,825 | 1,019,575 | 1,427,405 | 7,137,025 |
| -1 | -5 | -7 | -17 | -25 | -35 | -85 | -119 | -175 | -425 | -595 | -2,399 | -2,975 | -11,995 | -16,793 | -40,783 | -59,975 | -83,965 | -203,915 | -285,481 | -419,825 | -1,019,575 | -1,427,405 | -7,137,025 |
Here are some more numbers to try:
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