A:
Positive:
1 x 221176155 x 442352313 x 170135519 x 116408565 x 34027195 x 232817247 x 895451235 x 17909
Negative:
-1 x -22117615-5 x -4423523-13 x -1701355-19 x -1164085-65 x -340271-95 x -232817-247 x -89545-1235 x -17909
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 22,117,615, 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 | 22,117,615 | |
| -1 | -22,117,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,117,615.
Example:
1 x 22,117,615 = 22,117,615
and
-1 x -22,117,615 = 22,117,615
Notice both answers equal 22,117,615
With that explanation out of the way, let's continue. Next, we take the number 22,117,615 and divide it by 2:
22,117,615 ÷ 2 = 11,058,807.5
If the quotient is a whole number, then 2 and 11,058,807.5 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 | 22,117,615 | |
| -1 | -22,117,615 |
Now, we try dividing 22,117,615 by 3:
22,117,615 ÷ 3 = 7,372,538.3333
If the quotient is a whole number, then 3 and 7,372,538.3333 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 | 22,117,615 | |
| -1 | -22,117,615 |
Let's try dividing by 4:
22,117,615 ÷ 4 = 5,529,403.75
If the quotient is a whole number, then 4 and 5,529,403.75 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 | 22,117,615 | |
| -1 | 22,117,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 95 | 247 | 1,235 | 17,909 | 89,545 | 232,817 | 340,271 | 1,164,085 | 1,701,355 | 4,423,523 | 22,117,615 |
| -1 | -5 | -13 | -19 | -65 | -95 | -247 | -1,235 | -17,909 | -89,545 | -232,817 | -340,271 | -1,164,085 | -1,701,355 | -4,423,523 | -22,117,615 |
Here are some more numbers to try:
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