A:
Positive:
1 x 421031355 x 842062717 x 247665567 x 62840585 x 495331335 x 1256811139 x 369655695 x 7393
Negative:
-1 x -42103135-5 x -8420627-17 x -2476655-67 x -628405-85 x -495331-335 x -125681-1139 x -36965-5695 x -7393
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 42,103,135, 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 | 42,103,135 | |
| -1 | -42,103,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,103,135.
Example:
1 x 42,103,135 = 42,103,135
and
-1 x -42,103,135 = 42,103,135
Notice both answers equal 42,103,135
With that explanation out of the way, let's continue. Next, we take the number 42,103,135 and divide it by 2:
42,103,135 ÷ 2 = 21,051,567.5
If the quotient is a whole number, then 2 and 21,051,567.5 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 | 42,103,135 | |
| -1 | -42,103,135 |
Now, we try dividing 42,103,135 by 3:
42,103,135 ÷ 3 = 14,034,378.3333
If the quotient is a whole number, then 3 and 14,034,378.3333 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 | 42,103,135 | |
| -1 | -42,103,135 |
Let's try dividing by 4:
42,103,135 ÷ 4 = 10,525,783.75
If the quotient is a whole number, then 4 and 10,525,783.75 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 | 42,103,135 | |
| -1 | 42,103,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 67 | 85 | 335 | 1,139 | 5,695 | 7,393 | 36,965 | 125,681 | 495,331 | 628,405 | 2,476,655 | 8,420,627 | 42,103,135 |
| -1 | -5 | -17 | -67 | -85 | -335 | -1,139 | -5,695 | -7,393 | -36,965 | -125,681 | -495,331 | -628,405 | -2,476,655 | -8,420,627 | -42,103,135 |
Here are some more numbers to try:
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