A:
Positive:
1 x 2221211355 x 4442422759 x 3764765295 x 752953643 x 3454451171 x 1896853215 x 690895855 x 37937
Negative:
-1 x -222121135-5 x -44424227-59 x -3764765-295 x -752953-643 x -345445-1171 x -189685-3215 x -69089-5855 x -37937
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 222,121,135, 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 | 222,121,135 | |
| -1 | -222,121,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 222,121,135.
Example:
1 x 222,121,135 = 222,121,135
and
-1 x -222,121,135 = 222,121,135
Notice both answers equal 222,121,135
With that explanation out of the way, let's continue. Next, we take the number 222,121,135 and divide it by 2:
222,121,135 ÷ 2 = 111,060,567.5
If the quotient is a whole number, then 2 and 111,060,567.5 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 | 222,121,135 | |
| -1 | -222,121,135 |
Now, we try dividing 222,121,135 by 3:
222,121,135 ÷ 3 = 74,040,378.3333
If the quotient is a whole number, then 3 and 74,040,378.3333 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 | 222,121,135 | |
| -1 | -222,121,135 |
Let's try dividing by 4:
222,121,135 ÷ 4 = 55,530,283.75
If the quotient is a whole number, then 4 and 55,530,283.75 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 | 222,121,135 | |
| -1 | 222,121,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 295 | 643 | 1,171 | 3,215 | 5,855 | 37,937 | 69,089 | 189,685 | 345,445 | 752,953 | 3,764,765 | 44,424,227 | 222,121,135 |
| -1 | -5 | -59 | -295 | -643 | -1,171 | -3,215 | -5,855 | -37,937 | -69,089 | -189,685 | -345,445 | -752,953 | -3,764,765 | -44,424,227 | -222,121,135 |
Here are some more numbers to try:
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