A:
Positive:
1 x 73809055 x 14761817 x 105441535 x 210883227 x 32515929 x 79451135 x 65031589 x 4645
Negative:
-1 x -7380905-5 x -1476181-7 x -1054415-35 x -210883-227 x -32515-929 x -7945-1135 x -6503-1589 x -4645
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 7,380,905, 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 | 7,380,905 | |
| -1 | -7,380,905 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,380,905.
Example:
1 x 7,380,905 = 7,380,905
and
-1 x -7,380,905 = 7,380,905
Notice both answers equal 7,380,905
With that explanation out of the way, let's continue. Next, we take the number 7,380,905 and divide it by 2:
7,380,905 ÷ 2 = 3,690,452.5
If the quotient is a whole number, then 2 and 3,690,452.5 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 | 7,380,905 | |
| -1 | -7,380,905 |
Now, we try dividing 7,380,905 by 3:
7,380,905 ÷ 3 = 2,460,301.6667
If the quotient is a whole number, then 3 and 2,460,301.6667 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 | 7,380,905 | |
| -1 | -7,380,905 |
Let's try dividing by 4:
7,380,905 ÷ 4 = 1,845,226.25
If the quotient is a whole number, then 4 and 1,845,226.25 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 | 7,380,905 | |
| -1 | 7,380,905 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 227 | 929 | 1,135 | 1,589 | 4,645 | 6,503 | 7,945 | 32,515 | 210,883 | 1,054,415 | 1,476,181 | 7,380,905 |
| -1 | -5 | -7 | -35 | -227 | -929 | -1,135 | -1,589 | -4,645 | -6,503 | -7,945 | -32,515 | -210,883 | -1,054,415 | -1,476,181 | -7,380,905 |
Here are some more numbers to try:
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