A:
Positive:
1 x 66205755 x 132411513 x 50927525 x 26482365 x 101855169 x 39175325 x 20371845 x 78351567 x 4225
Negative:
-1 x -6620575-5 x -1324115-13 x -509275-25 x -264823-65 x -101855-169 x -39175-325 x -20371-845 x -7835-1567 x -4225
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 6,620,575, 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 | 6,620,575 | |
| -1 | -6,620,575 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,620,575.
Example:
1 x 6,620,575 = 6,620,575
and
-1 x -6,620,575 = 6,620,575
Notice both answers equal 6,620,575
With that explanation out of the way, let's continue. Next, we take the number 6,620,575 and divide it by 2:
6,620,575 ÷ 2 = 3,310,287.5
If the quotient is a whole number, then 2 and 3,310,287.5 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 | 6,620,575 | |
| -1 | -6,620,575 |
Now, we try dividing 6,620,575 by 3:
6,620,575 ÷ 3 = 2,206,858.3333
If the quotient is a whole number, then 3 and 2,206,858.3333 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 | 6,620,575 | |
| -1 | -6,620,575 |
Let's try dividing by 4:
6,620,575 ÷ 4 = 1,655,143.75
If the quotient is a whole number, then 4 and 1,655,143.75 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 | 6,620,575 | |
| -1 | 6,620,575 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 169 | 325 | 845 | 1,567 | 4,225 | 7,835 | 20,371 | 39,175 | 101,855 | 264,823 | 509,275 | 1,324,115 | 6,620,575 |
| -1 | -5 | -13 | -25 | -65 | -169 | -325 | -845 | -1,567 | -4,225 | -7,835 | -20,371 | -39,175 | -101,855 | -264,823 | -509,275 | -1,324,115 | -6,620,575 |
Here are some more numbers to try:
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