A:
Positive:
1 x 2221434055 x 4442868111 x 2019485553 x 419138555 x 4038971265 x 838277583 x 3810352915 x 76207
Negative:
-1 x -222143405-5 x -44428681-11 x -20194855-53 x -4191385-55 x -4038971-265 x -838277-583 x -381035-2915 x -76207
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 222,143,405, 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 | 222,143,405 | |
| -1 | -222,143,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 222,143,405.
Example:
1 x 222,143,405 = 222,143,405
and
-1 x -222,143,405 = 222,143,405
Notice both answers equal 222,143,405
With that explanation out of the way, let's continue. Next, we take the number 222,143,405 and divide it by 2:
222,143,405 ÷ 2 = 111,071,702.5
If the quotient is a whole number, then 2 and 111,071,702.5 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 | 222,143,405 | |
| -1 | -222,143,405 |
Now, we try dividing 222,143,405 by 3:
222,143,405 ÷ 3 = 74,047,801.6667
If the quotient is a whole number, then 3 and 74,047,801.6667 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 | 222,143,405 | |
| -1 | -222,143,405 |
Let's try dividing by 4:
222,143,405 ÷ 4 = 55,535,851.25
If the quotient is a whole number, then 4 and 55,535,851.25 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 | 222,143,405 | |
| -1 | 222,143,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 53 | 55 | 265 | 583 | 2,915 | 76,207 | 381,035 | 838,277 | 4,038,971 | 4,191,385 | 20,194,855 | 44,428,681 | 222,143,405 |
| -1 | -5 | -11 | -53 | -55 | -265 | -583 | -2,915 | -76,207 | -381,035 | -838,277 | -4,038,971 | -4,191,385 | -20,194,855 | -44,428,681 | -222,143,405 |
Here are some more numbers to try:
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