A:
Positive:
1 x 776053555 x 1552107159 x 1315345295 x 263069503 x 154285523 x 1483852515 x 308572615 x 29677
Negative:
-1 x -77605355-5 x -15521071-59 x -1315345-295 x -263069-503 x -154285-523 x -148385-2515 x -30857-2615 x -29677
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 77,605,355, 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 | 77,605,355 | |
| -1 | -77,605,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,605,355.
Example:
1 x 77,605,355 = 77,605,355
and
-1 x -77,605,355 = 77,605,355
Notice both answers equal 77,605,355
With that explanation out of the way, let's continue. Next, we take the number 77,605,355 and divide it by 2:
77,605,355 ÷ 2 = 38,802,677.5
If the quotient is a whole number, then 2 and 38,802,677.5 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 | 77,605,355 | |
| -1 | -77,605,355 |
Now, we try dividing 77,605,355 by 3:
77,605,355 ÷ 3 = 25,868,451.6667
If the quotient is a whole number, then 3 and 25,868,451.6667 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 | 77,605,355 | |
| -1 | -77,605,355 |
Let's try dividing by 4:
77,605,355 ÷ 4 = 19,401,338.75
If the quotient is a whole number, then 4 and 19,401,338.75 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 | 77,605,355 | |
| -1 | 77,605,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 295 | 503 | 523 | 2,515 | 2,615 | 29,677 | 30,857 | 148,385 | 154,285 | 263,069 | 1,315,345 | 15,521,071 | 77,605,355 |
| -1 | -5 | -59 | -295 | -503 | -523 | -2,515 | -2,615 | -29,677 | -30,857 | -148,385 | -154,285 | -263,069 | -1,315,345 | -15,521,071 | -77,605,355 |
Here are some more numbers to try:
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