A:
Positive:
1 x 771925455 x 1543850937 x 208628541 x 1882745185 x 417257205 x 3765491517 x 508857585 x 10177
Negative:
-1 x -77192545-5 x -15438509-37 x -2086285-41 x -1882745-185 x -417257-205 x -376549-1517 x -50885-7585 x -10177
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 77,192,545, 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 | 77,192,545 | |
| -1 | -77,192,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,192,545.
Example:
1 x 77,192,545 = 77,192,545
and
-1 x -77,192,545 = 77,192,545
Notice both answers equal 77,192,545
With that explanation out of the way, let's continue. Next, we take the number 77,192,545 and divide it by 2:
77,192,545 ÷ 2 = 38,596,272.5
If the quotient is a whole number, then 2 and 38,596,272.5 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 | 77,192,545 | |
| -1 | -77,192,545 |
Now, we try dividing 77,192,545 by 3:
77,192,545 ÷ 3 = 25,730,848.3333
If the quotient is a whole number, then 3 and 25,730,848.3333 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 | 77,192,545 | |
| -1 | -77,192,545 |
Let's try dividing by 4:
77,192,545 ÷ 4 = 19,298,136.25
If the quotient is a whole number, then 4 and 19,298,136.25 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 | 77,192,545 | |
| -1 | 77,192,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 41 | 185 | 205 | 1,517 | 7,585 | 10,177 | 50,885 | 376,549 | 417,257 | 1,882,745 | 2,086,285 | 15,438,509 | 77,192,545 |
| -1 | -5 | -37 | -41 | -185 | -205 | -1,517 | -7,585 | -10,177 | -50,885 | -376,549 | -417,257 | -1,882,745 | -2,086,285 | -15,438,509 | -77,192,545 |
Here are some more numbers to try:
Try the factor calculator