A:
Positive:
1 x 4221341311 x 383758331 x 136172379 x 534347341 x 123793869 x 485771567 x 269392449 x 17237
Negative:
-1 x -42213413-11 x -3837583-31 x -1361723-79 x -534347-341 x -123793-869 x -48577-1567 x -26939-2449 x -17237
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 42,213,413, 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 | 42,213,413 | |
| -1 | -42,213,413 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,213,413.
Example:
1 x 42,213,413 = 42,213,413
and
-1 x -42,213,413 = 42,213,413
Notice both answers equal 42,213,413
With that explanation out of the way, let's continue. Next, we take the number 42,213,413 and divide it by 2:
42,213,413 ÷ 2 = 21,106,706.5
If the quotient is a whole number, then 2 and 21,106,706.5 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 | 42,213,413 | |
| -1 | -42,213,413 |
Now, we try dividing 42,213,413 by 3:
42,213,413 ÷ 3 = 14,071,137.6667
If the quotient is a whole number, then 3 and 14,071,137.6667 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 | 42,213,413 | |
| -1 | -42,213,413 |
Let's try dividing by 4:
42,213,413 ÷ 4 = 10,553,353.25
If the quotient is a whole number, then 4 and 10,553,353.25 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 | 42,213,413 | |
| -1 | 42,213,413 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 79 | 341 | 869 | 1,567 | 2,449 | 17,237 | 26,939 | 48,577 | 123,793 | 534,347 | 1,361,723 | 3,837,583 | 42,213,413 |
| -1 | -11 | -31 | -79 | -341 | -869 | -1,567 | -2,449 | -17,237 | -26,939 | -48,577 | -123,793 | -534,347 | -1,361,723 | -3,837,583 | -42,213,413 |
Here are some more numbers to try:
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