A:
Positive:
1 x 741800055 x 1483600137 x 200486583 x 893735185 x 400973415 x 1787473071 x 241554831 x 15355
Negative:
-1 x -74180005-5 x -14836001-37 x -2004865-83 x -893735-185 x -400973-415 x -178747-3071 x -24155-4831 x -15355
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 74,180,005, 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 | 74,180,005 | |
| -1 | -74,180,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 74,180,005.
Example:
1 x 74,180,005 = 74,180,005
and
-1 x -74,180,005 = 74,180,005
Notice both answers equal 74,180,005
With that explanation out of the way, let's continue. Next, we take the number 74,180,005 and divide it by 2:
74,180,005 ÷ 2 = 37,090,002.5
If the quotient is a whole number, then 2 and 37,090,002.5 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 | 74,180,005 | |
| -1 | -74,180,005 |
Now, we try dividing 74,180,005 by 3:
74,180,005 ÷ 3 = 24,726,668.3333
If the quotient is a whole number, then 3 and 24,726,668.3333 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 | 74,180,005 | |
| -1 | -74,180,005 |
Let's try dividing by 4:
74,180,005 ÷ 4 = 18,545,001.25
If the quotient is a whole number, then 4 and 18,545,001.25 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 | 74,180,005 | |
| -1 | 74,180,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 83 | 185 | 415 | 3,071 | 4,831 | 15,355 | 24,155 | 178,747 | 400,973 | 893,735 | 2,004,865 | 14,836,001 | 74,180,005 |
| -1 | -5 | -37 | -83 | -185 | -415 | -3,071 | -4,831 | -15,355 | -24,155 | -178,747 | -400,973 | -893,735 | -2,004,865 | -14,836,001 | -74,180,005 |
Here are some more numbers to try:
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