A:
Positive:
1 x 2203624455 x 4407248929 x 7598705137 x 1608485145 x 1519741685 x 3216973973 x 5546511093 x 19865
Negative:
-1 x -220362445-5 x -44072489-29 x -7598705-137 x -1608485-145 x -1519741-685 x -321697-3973 x -55465-11093 x -19865
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 220,362,445, 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 | 220,362,445 | |
| -1 | -220,362,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 220,362,445.
Example:
1 x 220,362,445 = 220,362,445
and
-1 x -220,362,445 = 220,362,445
Notice both answers equal 220,362,445
With that explanation out of the way, let's continue. Next, we take the number 220,362,445 and divide it by 2:
220,362,445 ÷ 2 = 110,181,222.5
If the quotient is a whole number, then 2 and 110,181,222.5 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 | 220,362,445 | |
| -1 | -220,362,445 |
Now, we try dividing 220,362,445 by 3:
220,362,445 ÷ 3 = 73,454,148.3333
If the quotient is a whole number, then 3 and 73,454,148.3333 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 | 220,362,445 | |
| -1 | -220,362,445 |
Let's try dividing by 4:
220,362,445 ÷ 4 = 55,090,611.25
If the quotient is a whole number, then 4 and 55,090,611.25 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 | 220,362,445 | |
| -1 | 220,362,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 137 | 145 | 685 | 3,973 | 11,093 | 19,865 | 55,465 | 321,697 | 1,519,741 | 1,608,485 | 7,598,705 | 44,072,489 | 220,362,445 |
| -1 | -5 | -29 | -137 | -145 | -685 | -3,973 | -11,093 | -19,865 | -55,465 | -321,697 | -1,519,741 | -1,608,485 | -7,598,705 | -44,072,489 | -220,362,445 |
Here are some more numbers to try:
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