A:
Positive:
1 x 222101117 x 317287311 x 201910123 x 96565777 x 288443161 x 137951253 x 877871771 x 12541
Negative:
-1 x -22210111-7 x -3172873-11 x -2019101-23 x -965657-77 x -288443-161 x -137951-253 x -87787-1771 x -12541
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 22,210,111, 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 | 22,210,111 | |
| -1 | -22,210,111 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,210,111.
Example:
1 x 22,210,111 = 22,210,111
and
-1 x -22,210,111 = 22,210,111
Notice both answers equal 22,210,111
With that explanation out of the way, let's continue. Next, we take the number 22,210,111 and divide it by 2:
22,210,111 ÷ 2 = 11,105,055.5
If the quotient is a whole number, then 2 and 11,105,055.5 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 | 22,210,111 | |
| -1 | -22,210,111 |
Now, we try dividing 22,210,111 by 3:
22,210,111 ÷ 3 = 7,403,370.3333
If the quotient is a whole number, then 3 and 7,403,370.3333 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 | 22,210,111 | |
| -1 | -22,210,111 |
Let's try dividing by 4:
22,210,111 ÷ 4 = 5,552,527.75
If the quotient is a whole number, then 4 and 5,552,527.75 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 | 22,210,111 | |
| -1 | 22,210,111 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 23 | 77 | 161 | 253 | 1,771 | 12,541 | 87,787 | 137,951 | 288,443 | 965,657 | 2,019,101 | 3,172,873 | 22,210,111 |
| -1 | -7 | -11 | -23 | -77 | -161 | -253 | -1,771 | -12,541 | -87,787 | -137,951 | -288,443 | -965,657 | -2,019,101 | -3,172,873 | -22,210,111 |
Here are some more numbers to try:
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