A:
Positive:
1 x 150572455 x 30114497 x 215103535 x 43020767 x 224735335 x 44947469 x 321052345 x 6421
Negative:
-1 x -15057245-5 x -3011449-7 x -2151035-35 x -430207-67 x -224735-335 x -44947-469 x -32105-2345 x -6421
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 15,057,245, 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 | 15,057,245 | |
| -1 | -15,057,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,057,245.
Example:
1 x 15,057,245 = 15,057,245
and
-1 x -15,057,245 = 15,057,245
Notice both answers equal 15,057,245
With that explanation out of the way, let's continue. Next, we take the number 15,057,245 and divide it by 2:
15,057,245 ÷ 2 = 7,528,622.5
If the quotient is a whole number, then 2 and 7,528,622.5 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 | 15,057,245 | |
| -1 | -15,057,245 |
Now, we try dividing 15,057,245 by 3:
15,057,245 ÷ 3 = 5,019,081.6667
If the quotient is a whole number, then 3 and 5,019,081.6667 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 | 15,057,245 | |
| -1 | -15,057,245 |
Let's try dividing by 4:
15,057,245 ÷ 4 = 3,764,311.25
If the quotient is a whole number, then 4 and 3,764,311.25 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 | 15,057,245 | |
| -1 | 15,057,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 67 | 335 | 469 | 2,345 | 6,421 | 32,105 | 44,947 | 224,735 | 430,207 | 2,151,035 | 3,011,449 | 15,057,245 |
| -1 | -5 | -7 | -35 | -67 | -335 | -469 | -2,345 | -6,421 | -32,105 | -44,947 | -224,735 | -430,207 | -2,151,035 | -3,011,449 | -15,057,245 |
Here are some more numbers to try:
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