A:
Positive:
1 x 12123553343 x 281943179 x 153462789 x 1362197401 x 3023333397 x 356893827 x 316797031 x 17243
Negative:
-1 x -121235533-43 x -2819431-79 x -1534627-89 x -1362197-401 x -302333-3397 x -35689-3827 x -31679-7031 x -17243
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 121,235,533, 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 | 121,235,533 | |
| -1 | -121,235,533 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,235,533.
Example:
1 x 121,235,533 = 121,235,533
and
-1 x -121,235,533 = 121,235,533
Notice both answers equal 121,235,533
With that explanation out of the way, let's continue. Next, we take the number 121,235,533 and divide it by 2:
121,235,533 ÷ 2 = 60,617,766.5
If the quotient is a whole number, then 2 and 60,617,766.5 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 | 121,235,533 | |
| -1 | -121,235,533 |
Now, we try dividing 121,235,533 by 3:
121,235,533 ÷ 3 = 40,411,844.3333
If the quotient is a whole number, then 3 and 40,411,844.3333 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 | 121,235,533 | |
| -1 | -121,235,533 |
Let's try dividing by 4:
121,235,533 ÷ 4 = 30,308,883.25
If the quotient is a whole number, then 4 and 30,308,883.25 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 | 121,235,533 | |
| -1 | 121,235,533 |
If you did it right, you will end up with this table:
| 1 | 43 | 79 | 89 | 401 | 3,397 | 3,827 | 7,031 | 17,243 | 31,679 | 35,689 | 302,333 | 1,362,197 | 1,534,627 | 2,819,431 | 121,235,533 |
| -1 | -43 | -79 | -89 | -401 | -3,397 | -3,827 | -7,031 | -17,243 | -31,679 | -35,689 | -302,333 | -1,362,197 | -1,534,627 | -2,819,431 | -121,235,533 |
Here are some more numbers to try:
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