A:
Positive:
1 x 774545055 x 1549090129 x 267084537 x 2093365145 x 534169185 x 4186731073 x 721855365 x 14437
Negative:
-1 x -77454505-5 x -15490901-29 x -2670845-37 x -2093365-145 x -534169-185 x -418673-1073 x -72185-5365 x -14437
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 77,454,505, 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 | 77,454,505 | |
| -1 | -77,454,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,454,505.
Example:
1 x 77,454,505 = 77,454,505
and
-1 x -77,454,505 = 77,454,505
Notice both answers equal 77,454,505
With that explanation out of the way, let's continue. Next, we take the number 77,454,505 and divide it by 2:
77,454,505 ÷ 2 = 38,727,252.5
If the quotient is a whole number, then 2 and 38,727,252.5 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 | 77,454,505 | |
| -1 | -77,454,505 |
Now, we try dividing 77,454,505 by 3:
77,454,505 ÷ 3 = 25,818,168.3333
If the quotient is a whole number, then 3 and 25,818,168.3333 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 | 77,454,505 | |
| -1 | -77,454,505 |
Let's try dividing by 4:
77,454,505 ÷ 4 = 19,363,626.25
If the quotient is a whole number, then 4 and 19,363,626.25 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 | 77,454,505 | |
| -1 | 77,454,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 37 | 145 | 185 | 1,073 | 5,365 | 14,437 | 72,185 | 418,673 | 534,169 | 2,093,365 | 2,670,845 | 15,490,901 | 77,454,505 |
| -1 | -5 | -29 | -37 | -145 | -185 | -1,073 | -5,365 | -14,437 | -72,185 | -418,673 | -534,169 | -2,093,365 | -2,670,845 | -15,490,901 | -77,454,505 |
Here are some more numbers to try:
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