A:
Positive:
1 x 770047397 x 1100067719 x 4052881133 x 578983197 x 3908871379 x 558412939 x 262013743 x 20573
Negative:
-1 x -77004739-7 x -11000677-19 x -4052881-133 x -578983-197 x -390887-1379 x -55841-2939 x -26201-3743 x -20573
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 77,004,739, 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 | 77,004,739 | |
| -1 | -77,004,739 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,004,739.
Example:
1 x 77,004,739 = 77,004,739
and
-1 x -77,004,739 = 77,004,739
Notice both answers equal 77,004,739
With that explanation out of the way, let's continue. Next, we take the number 77,004,739 and divide it by 2:
77,004,739 ÷ 2 = 38,502,369.5
If the quotient is a whole number, then 2 and 38,502,369.5 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 | 77,004,739 | |
| -1 | -77,004,739 |
Now, we try dividing 77,004,739 by 3:
77,004,739 ÷ 3 = 25,668,246.3333
If the quotient is a whole number, then 3 and 25,668,246.3333 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 | 77,004,739 | |
| -1 | -77,004,739 |
Let's try dividing by 4:
77,004,739 ÷ 4 = 19,251,184.75
If the quotient is a whole number, then 4 and 19,251,184.75 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 | 77,004,739 | |
| -1 | 77,004,739 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 197 | 1,379 | 2,939 | 3,743 | 20,573 | 26,201 | 55,841 | 390,887 | 578,983 | 4,052,881 | 11,000,677 | 77,004,739 |
| -1 | -7 | -19 | -133 | -197 | -1,379 | -2,939 | -3,743 | -20,573 | -26,201 | -55,841 | -390,887 | -578,983 | -4,052,881 | -11,000,677 | -77,004,739 |
Here are some more numbers to try:
Try the factor calculator