A:
Positive:
1 x 426614155 x 853228317 x 250949571 x 60086585 x 501899355 x 1201731207 x 353456035 x 7069
Negative:
-1 x -42661415-5 x -8532283-17 x -2509495-71 x -600865-85 x -501899-355 x -120173-1207 x -35345-6035 x -7069
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 42,661,415, 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 | 42,661,415 | |
| -1 | -42,661,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,661,415.
Example:
1 x 42,661,415 = 42,661,415
and
-1 x -42,661,415 = 42,661,415
Notice both answers equal 42,661,415
With that explanation out of the way, let's continue. Next, we take the number 42,661,415 and divide it by 2:
42,661,415 ÷ 2 = 21,330,707.5
If the quotient is a whole number, then 2 and 21,330,707.5 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 | 42,661,415 | |
| -1 | -42,661,415 |
Now, we try dividing 42,661,415 by 3:
42,661,415 ÷ 3 = 14,220,471.6667
If the quotient is a whole number, then 3 and 14,220,471.6667 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 | 42,661,415 | |
| -1 | -42,661,415 |
Let's try dividing by 4:
42,661,415 ÷ 4 = 10,665,353.75
If the quotient is a whole number, then 4 and 10,665,353.75 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 | 42,661,415 | |
| -1 | 42,661,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 71 | 85 | 355 | 1,207 | 6,035 | 7,069 | 35,345 | 120,173 | 501,899 | 600,865 | 2,509,495 | 8,532,283 | 42,661,415 |
| -1 | -5 | -17 | -71 | -85 | -355 | -1,207 | -6,035 | -7,069 | -35,345 | -120,173 | -501,899 | -600,865 | -2,509,495 | -8,532,283 | -42,661,415 |
Here are some more numbers to try:
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