A:
Positive:
1 x 772761655 x 1545523337 x 2088545185 x 417709617 x 125245677 x 1141453085 x 250493385 x 22829
Negative:
-1 x -77276165-5 x -15455233-37 x -2088545-185 x -417709-617 x -125245-677 x -114145-3085 x -25049-3385 x -22829
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 77,276,165, 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 | 77,276,165 | |
| -1 | -77,276,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,276,165.
Example:
1 x 77,276,165 = 77,276,165
and
-1 x -77,276,165 = 77,276,165
Notice both answers equal 77,276,165
With that explanation out of the way, let's continue. Next, we take the number 77,276,165 and divide it by 2:
77,276,165 ÷ 2 = 38,638,082.5
If the quotient is a whole number, then 2 and 38,638,082.5 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 | 77,276,165 | |
| -1 | -77,276,165 |
Now, we try dividing 77,276,165 by 3:
77,276,165 ÷ 3 = 25,758,721.6667
If the quotient is a whole number, then 3 and 25,758,721.6667 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 | 77,276,165 | |
| -1 | -77,276,165 |
Let's try dividing by 4:
77,276,165 ÷ 4 = 19,319,041.25
If the quotient is a whole number, then 4 and 19,319,041.25 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 | 77,276,165 | |
| -1 | 77,276,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 617 | 677 | 3,085 | 3,385 | 22,829 | 25,049 | 114,145 | 125,245 | 417,709 | 2,088,545 | 15,455,233 | 77,276,165 |
| -1 | -5 | -37 | -185 | -617 | -677 | -3,085 | -3,385 | -22,829 | -25,049 | -114,145 | -125,245 | -417,709 | -2,088,545 | -15,455,233 | -77,276,165 |
Here are some more numbers to try:
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