A:
Positive:
1 x 426392755 x 85278557 x 609132525 x 170557135 x 1218265167 x 255325175 x 243653835 x 510651169 x 364751459 x 292254175 x 102135845 x 7295
Negative:
-1 x -42639275-5 x -8527855-7 x -6091325-25 x -1705571-35 x -1218265-167 x -255325-175 x -243653-835 x -51065-1169 x -36475-1459 x -29225-4175 x -10213-5845 x -7295
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 42,639,275, 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 | 42,639,275 | |
| -1 | -42,639,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,639,275.
Example:
1 x 42,639,275 = 42,639,275
and
-1 x -42,639,275 = 42,639,275
Notice both answers equal 42,639,275
With that explanation out of the way, let's continue. Next, we take the number 42,639,275 and divide it by 2:
42,639,275 ÷ 2 = 21,319,637.5
If the quotient is a whole number, then 2 and 21,319,637.5 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 | 42,639,275 | |
| -1 | -42,639,275 |
Now, we try dividing 42,639,275 by 3:
42,639,275 ÷ 3 = 14,213,091.6667
If the quotient is a whole number, then 3 and 14,213,091.6667 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 | 42,639,275 | |
| -1 | -42,639,275 |
Let's try dividing by 4:
42,639,275 ÷ 4 = 10,659,818.75
If the quotient is a whole number, then 4 and 10,659,818.75 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 | 42,639,275 | |
| -1 | 42,639,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 167 | 175 | 835 | 1,169 | 1,459 | 4,175 | 5,845 | 7,295 | 10,213 | 29,225 | 36,475 | 51,065 | 243,653 | 255,325 | 1,218,265 | 1,705,571 | 6,091,325 | 8,527,855 | 42,639,275 |
| -1 | -5 | -7 | -25 | -35 | -167 | -175 | -835 | -1,169 | -1,459 | -4,175 | -5,845 | -7,295 | -10,213 | -29,225 | -36,475 | -51,065 | -243,653 | -255,325 | -1,218,265 | -1,705,571 | -6,091,325 | -8,527,855 | -42,639,275 |
Here are some more numbers to try:
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