A:
Positive:
1 x 131500455 x 263000931 x 42419543 x 305815155 x 84839215 x 611631333 x 98651973 x 6665
Negative:
-1 x -13150045-5 x -2630009-31 x -424195-43 x -305815-155 x -84839-215 x -61163-1333 x -9865-1973 x -6665
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 13,150,045, 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 | 13,150,045 | |
| -1 | -13,150,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,150,045.
Example:
1 x 13,150,045 = 13,150,045
and
-1 x -13,150,045 = 13,150,045
Notice both answers equal 13,150,045
With that explanation out of the way, let's continue. Next, we take the number 13,150,045 and divide it by 2:
13,150,045 ÷ 2 = 6,575,022.5
If the quotient is a whole number, then 2 and 6,575,022.5 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 | 13,150,045 | |
| -1 | -13,150,045 |
Now, we try dividing 13,150,045 by 3:
13,150,045 ÷ 3 = 4,383,348.3333
If the quotient is a whole number, then 3 and 4,383,348.3333 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 | 13,150,045 | |
| -1 | -13,150,045 |
Let's try dividing by 4:
13,150,045 ÷ 4 = 3,287,511.25
If the quotient is a whole number, then 4 and 3,287,511.25 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 | 13,150,045 | |
| -1 | 13,150,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 43 | 155 | 215 | 1,333 | 1,973 | 6,665 | 9,865 | 61,163 | 84,839 | 305,815 | 424,195 | 2,630,009 | 13,150,045 |
| -1 | -5 | -31 | -43 | -155 | -215 | -1,333 | -1,973 | -6,665 | -9,865 | -61,163 | -84,839 | -305,815 | -424,195 | -2,630,009 | -13,150,045 |
Here are some more numbers to try:
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