A:
Positive:
1 x 250303137 x 357575911 x 227548361 x 41033373 x 34288177 x 325069427 x 58619511 x 48983671 x 37303803 x 311714453 x 56214697 x 5329
Negative:
-1 x -25030313-7 x -3575759-11 x -2275483-61 x -410333-73 x -342881-77 x -325069-427 x -58619-511 x -48983-671 x -37303-803 x -31171-4453 x -5621-4697 x -5329
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 25,030,313, 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 | 25,030,313 | |
| -1 | -25,030,313 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,030,313.
Example:
1 x 25,030,313 = 25,030,313
and
-1 x -25,030,313 = 25,030,313
Notice both answers equal 25,030,313
With that explanation out of the way, let's continue. Next, we take the number 25,030,313 and divide it by 2:
25,030,313 ÷ 2 = 12,515,156.5
If the quotient is a whole number, then 2 and 12,515,156.5 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 | 25,030,313 | |
| -1 | -25,030,313 |
Now, we try dividing 25,030,313 by 3:
25,030,313 ÷ 3 = 8,343,437.6667
If the quotient is a whole number, then 3 and 8,343,437.6667 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 | 25,030,313 | |
| -1 | -25,030,313 |
Let's try dividing by 4:
25,030,313 ÷ 4 = 6,257,578.25
If the quotient is a whole number, then 4 and 6,257,578.25 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 | 25,030,313 | |
| -1 | 25,030,313 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 61 | 73 | 77 | 427 | 511 | 671 | 803 | 4,453 | 4,697 | 5,329 | 5,621 | 31,171 | 37,303 | 48,983 | 58,619 | 325,069 | 342,881 | 410,333 | 2,275,483 | 3,575,759 | 25,030,313 |
| -1 | -7 | -11 | -61 | -73 | -77 | -427 | -511 | -671 | -803 | -4,453 | -4,697 | -5,329 | -5,621 | -31,171 | -37,303 | -48,983 | -58,619 | -325,069 | -342,881 | -410,333 | -2,275,483 | -3,575,759 | -25,030,313 |
Here are some more numbers to try:
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