A:
Positive:
1 x 130222155 x 260444341 x 317615139 x 93685205 x 63523457 x 28495695 x 187372285 x 5699
Negative:
-1 x -13022215-5 x -2604443-41 x -317615-139 x -93685-205 x -63523-457 x -28495-695 x -18737-2285 x -5699
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 13,022,215, 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 | 13,022,215 | |
| -1 | -13,022,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,022,215.
Example:
1 x 13,022,215 = 13,022,215
and
-1 x -13,022,215 = 13,022,215
Notice both answers equal 13,022,215
With that explanation out of the way, let's continue. Next, we take the number 13,022,215 and divide it by 2:
13,022,215 ÷ 2 = 6,511,107.5
If the quotient is a whole number, then 2 and 6,511,107.5 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 | 13,022,215 | |
| -1 | -13,022,215 |
Now, we try dividing 13,022,215 by 3:
13,022,215 ÷ 3 = 4,340,738.3333
If the quotient is a whole number, then 3 and 4,340,738.3333 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 | 13,022,215 | |
| -1 | -13,022,215 |
Let's try dividing by 4:
13,022,215 ÷ 4 = 3,255,553.75
If the quotient is a whole number, then 4 and 3,255,553.75 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 | 13,022,215 | |
| -1 | 13,022,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 139 | 205 | 457 | 695 | 2,285 | 5,699 | 18,737 | 28,495 | 63,523 | 93,685 | 317,615 | 2,604,443 | 13,022,215 |
| -1 | -5 | -41 | -139 | -205 | -457 | -695 | -2,285 | -5,699 | -18,737 | -28,495 | -63,523 | -93,685 | -317,615 | -2,604,443 | -13,022,215 |
Here are some more numbers to try:
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