A:
Positive:
1 x 77642117 x 110917313 x 59724741 x 18937191 x 85321287 x 27053533 x 145672081 x 3731
Negative:
-1 x -7764211-7 x -1109173-13 x -597247-41 x -189371-91 x -85321-287 x -27053-533 x -14567-2081 x -3731
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 7,764,211, 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 | 7,764,211 | |
| -1 | -7,764,211 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,764,211.
Example:
1 x 7,764,211 = 7,764,211
and
-1 x -7,764,211 = 7,764,211
Notice both answers equal 7,764,211
With that explanation out of the way, let's continue. Next, we take the number 7,764,211 and divide it by 2:
7,764,211 ÷ 2 = 3,882,105.5
If the quotient is a whole number, then 2 and 3,882,105.5 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 | 7,764,211 | |
| -1 | -7,764,211 |
Now, we try dividing 7,764,211 by 3:
7,764,211 ÷ 3 = 2,588,070.3333
If the quotient is a whole number, then 3 and 2,588,070.3333 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 | 7,764,211 | |
| -1 | -7,764,211 |
Let's try dividing by 4:
7,764,211 ÷ 4 = 1,941,052.75
If the quotient is a whole number, then 4 and 1,941,052.75 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 | 7,764,211 | |
| -1 | 7,764,211 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 41 | 91 | 287 | 533 | 2,081 | 3,731 | 14,567 | 27,053 | 85,321 | 189,371 | 597,247 | 1,109,173 | 7,764,211 |
| -1 | -7 | -13 | -41 | -91 | -287 | -533 | -2,081 | -3,731 | -14,567 | -27,053 | -85,321 | -189,371 | -597,247 | -1,109,173 | -7,764,211 |
Here are some more numbers to try:
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