A:
Positive:
1 x 7730576217 x 110436803307 x 2518103479 x 1613899751 x 10293712149 x 3597293353 x 2305575257 x 147053
Negative:
-1 x -773057621-7 x -110436803-307 x -2518103-479 x -1613899-751 x -1029371-2149 x -359729-3353 x -230557-5257 x -147053
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 773,057,621, 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 | 773,057,621 | |
| -1 | -773,057,621 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 773,057,621.
Example:
1 x 773,057,621 = 773,057,621
and
-1 x -773,057,621 = 773,057,621
Notice both answers equal 773,057,621
With that explanation out of the way, let's continue. Next, we take the number 773,057,621 and divide it by 2:
773,057,621 ÷ 2 = 386,528,810.5
If the quotient is a whole number, then 2 and 386,528,810.5 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 | 773,057,621 | |
| -1 | -773,057,621 |
Now, we try dividing 773,057,621 by 3:
773,057,621 ÷ 3 = 257,685,873.6667
If the quotient is a whole number, then 3 and 257,685,873.6667 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 | 773,057,621 | |
| -1 | -773,057,621 |
Let's try dividing by 4:
773,057,621 ÷ 4 = 193,264,405.25
If the quotient is a whole number, then 4 and 193,264,405.25 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 | 773,057,621 | |
| -1 | 773,057,621 |
If you did it right, you will end up with this table:
| 1 | 7 | 307 | 479 | 751 | 2,149 | 3,353 | 5,257 | 147,053 | 230,557 | 359,729 | 1,029,371 | 1,613,899 | 2,518,103 | 110,436,803 | 773,057,621 |
| -1 | -7 | -307 | -479 | -751 | -2,149 | -3,353 | -5,257 | -147,053 | -230,557 | -359,729 | -1,029,371 | -1,613,899 | -2,518,103 | -110,436,803 | -773,057,621 |
Here are some more numbers to try:
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