A:
Positive:
1 x 420102355 x 840204719 x 221106595 x 442213109 x 385415545 x 770832071 x 202854057 x 10355
Negative:
-1 x -42010235-5 x -8402047-19 x -2211065-95 x -442213-109 x -385415-545 x -77083-2071 x -20285-4057 x -10355
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 42,010,235, 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 | 42,010,235 | |
| -1 | -42,010,235 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,010,235.
Example:
1 x 42,010,235 = 42,010,235
and
-1 x -42,010,235 = 42,010,235
Notice both answers equal 42,010,235
With that explanation out of the way, let's continue. Next, we take the number 42,010,235 and divide it by 2:
42,010,235 ÷ 2 = 21,005,117.5
If the quotient is a whole number, then 2 and 21,005,117.5 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 | 42,010,235 | |
| -1 | -42,010,235 |
Now, we try dividing 42,010,235 by 3:
42,010,235 ÷ 3 = 14,003,411.6667
If the quotient is a whole number, then 3 and 14,003,411.6667 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 | 42,010,235 | |
| -1 | -42,010,235 |
Let's try dividing by 4:
42,010,235 ÷ 4 = 10,502,558.75
If the quotient is a whole number, then 4 and 10,502,558.75 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 | 42,010,235 | |
| -1 | 42,010,235 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 109 | 545 | 2,071 | 4,057 | 10,355 | 20,285 | 77,083 | 385,415 | 442,213 | 2,211,065 | 8,402,047 | 42,010,235 |
| -1 | -5 | -19 | -95 | -109 | -545 | -2,071 | -4,057 | -10,355 | -20,285 | -77,083 | -385,415 | -442,213 | -2,211,065 | -8,402,047 | -42,010,235 |
Here are some more numbers to try:
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