A:
Positive:
1 x 75282555 x 15056517 x 107546529 x 25959535 x 215093145 x 51919203 x 370851015 x 7417
Negative:
-1 x -7528255-5 x -1505651-7 x -1075465-29 x -259595-35 x -215093-145 x -51919-203 x -37085-1015 x -7417
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 7,528,255, 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 | 7,528,255 | |
| -1 | -7,528,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,528,255.
Example:
1 x 7,528,255 = 7,528,255
and
-1 x -7,528,255 = 7,528,255
Notice both answers equal 7,528,255
With that explanation out of the way, let's continue. Next, we take the number 7,528,255 and divide it by 2:
7,528,255 ÷ 2 = 3,764,127.5
If the quotient is a whole number, then 2 and 3,764,127.5 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 | 7,528,255 | |
| -1 | -7,528,255 |
Now, we try dividing 7,528,255 by 3:
7,528,255 ÷ 3 = 2,509,418.3333
If the quotient is a whole number, then 3 and 2,509,418.3333 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 | 7,528,255 | |
| -1 | -7,528,255 |
Let's try dividing by 4:
7,528,255 ÷ 4 = 1,882,063.75
If the quotient is a whole number, then 4 and 1,882,063.75 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 | 7,528,255 | |
| -1 | 7,528,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 29 | 35 | 145 | 203 | 1,015 | 7,417 | 37,085 | 51,919 | 215,093 | 259,595 | 1,075,465 | 1,505,651 | 7,528,255 |
| -1 | -5 | -7 | -29 | -35 | -145 | -203 | -1,015 | -7,417 | -37,085 | -51,919 | -215,093 | -259,595 | -1,075,465 | -1,505,651 | -7,528,255 |
Here are some more numbers to try:
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