A:
Positive:
1 x 777713455 x 1555426917 x 457478585 x 914957107 x 726835289 x 269105503 x 154615535 x 1453671445 x 538211819 x 427552515 x 309238551 x 9095
Negative:
-1 x -77771345-5 x -15554269-17 x -4574785-85 x -914957-107 x -726835-289 x -269105-503 x -154615-535 x -145367-1445 x -53821-1819 x -42755-2515 x -30923-8551 x -9095
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 77,771,345, 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 | 77,771,345 | |
| -1 | -77,771,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,771,345.
Example:
1 x 77,771,345 = 77,771,345
and
-1 x -77,771,345 = 77,771,345
Notice both answers equal 77,771,345
With that explanation out of the way, let's continue. Next, we take the number 77,771,345 and divide it by 2:
77,771,345 ÷ 2 = 38,885,672.5
If the quotient is a whole number, then 2 and 38,885,672.5 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 | 77,771,345 | |
| -1 | -77,771,345 |
Now, we try dividing 77,771,345 by 3:
77,771,345 ÷ 3 = 25,923,781.6667
If the quotient is a whole number, then 3 and 25,923,781.6667 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 | 77,771,345 | |
| -1 | -77,771,345 |
Let's try dividing by 4:
77,771,345 ÷ 4 = 19,442,836.25
If the quotient is a whole number, then 4 and 19,442,836.25 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 | 77,771,345 | |
| -1 | 77,771,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 107 | 289 | 503 | 535 | 1,445 | 1,819 | 2,515 | 8,551 | 9,095 | 30,923 | 42,755 | 53,821 | 145,367 | 154,615 | 269,105 | 726,835 | 914,957 | 4,574,785 | 15,554,269 | 77,771,345 |
| -1 | -5 | -17 | -85 | -107 | -289 | -503 | -535 | -1,445 | -1,819 | -2,515 | -8,551 | -9,095 | -30,923 | -42,755 | -53,821 | -145,367 | -154,615 | -269,105 | -726,835 | -914,957 | -4,574,785 | -15,554,269 | -77,771,345 |
Here are some more numbers to try:
Try the factor calculator