A:
Positive:
1 x 740490855 x 1480981711 x 673173555 x 1346347857 x 864051571 x 471354285 x 172817855 x 9427
Negative:
-1 x -74049085-5 x -14809817-11 x -6731735-55 x -1346347-857 x -86405-1571 x -47135-4285 x -17281-7855 x -9427
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 74,049,085, 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 | 74,049,085 | |
| -1 | -74,049,085 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 74,049,085.
Example:
1 x 74,049,085 = 74,049,085
and
-1 x -74,049,085 = 74,049,085
Notice both answers equal 74,049,085
With that explanation out of the way, let's continue. Next, we take the number 74,049,085 and divide it by 2:
74,049,085 ÷ 2 = 37,024,542.5
If the quotient is a whole number, then 2 and 37,024,542.5 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 | 74,049,085 | |
| -1 | -74,049,085 |
Now, we try dividing 74,049,085 by 3:
74,049,085 ÷ 3 = 24,683,028.3333
If the quotient is a whole number, then 3 and 24,683,028.3333 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 | 74,049,085 | |
| -1 | -74,049,085 |
Let's try dividing by 4:
74,049,085 ÷ 4 = 18,512,271.25
If the quotient is a whole number, then 4 and 18,512,271.25 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 | 74,049,085 | |
| -1 | 74,049,085 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 857 | 1,571 | 4,285 | 7,855 | 9,427 | 17,281 | 47,135 | 86,405 | 1,346,347 | 6,731,735 | 14,809,817 | 74,049,085 |
| -1 | -5 | -11 | -55 | -857 | -1,571 | -4,285 | -7,855 | -9,427 | -17,281 | -47,135 | -86,405 | -1,346,347 | -6,731,735 | -14,809,817 | -74,049,085 |
Here are some more numbers to try:
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