A:
Positive:
1 x 421034355 x 842068711 x 382758555 x 765517239 x 1761651195 x 352332629 x 160153203 x 13145
Negative:
-1 x -42103435-5 x -8420687-11 x -3827585-55 x -765517-239 x -176165-1195 x -35233-2629 x -16015-3203 x -13145
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 42,103,435, 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 | 42,103,435 | |
| -1 | -42,103,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,103,435.
Example:
1 x 42,103,435 = 42,103,435
and
-1 x -42,103,435 = 42,103,435
Notice both answers equal 42,103,435
With that explanation out of the way, let's continue. Next, we take the number 42,103,435 and divide it by 2:
42,103,435 ÷ 2 = 21,051,717.5
If the quotient is a whole number, then 2 and 21,051,717.5 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 | 42,103,435 | |
| -1 | -42,103,435 |
Now, we try dividing 42,103,435 by 3:
42,103,435 ÷ 3 = 14,034,478.3333
If the quotient is a whole number, then 3 and 14,034,478.3333 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 | 42,103,435 | |
| -1 | -42,103,435 |
Let's try dividing by 4:
42,103,435 ÷ 4 = 10,525,858.75
If the quotient is a whole number, then 4 and 10,525,858.75 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 | 42,103,435 | |
| -1 | 42,103,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 239 | 1,195 | 2,629 | 3,203 | 13,145 | 16,015 | 35,233 | 176,165 | 765,517 | 3,827,585 | 8,420,687 | 42,103,435 |
| -1 | -5 | -11 | -55 | -239 | -1,195 | -2,629 | -3,203 | -13,145 | -16,015 | -35,233 | -176,165 | -765,517 | -3,827,585 | -8,420,687 | -42,103,435 |
Here are some more numbers to try:
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