A:
Positive:
1 x 7727773313 x 594444117 x 454574967 x 1153399221 x 349673289 x 267397307 x 251719871 x 887231139 x 678473757 x 205693991 x 193635219 x 14807
Negative:
-1 x -77277733-13 x -5944441-17 x -4545749-67 x -1153399-221 x -349673-289 x -267397-307 x -251719-871 x -88723-1139 x -67847-3757 x -20569-3991 x -19363-5219 x -14807
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 77,277,733, 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 | 77,277,733 | |
| -1 | -77,277,733 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 77,277,733.
Example:
1 x 77,277,733 = 77,277,733
and
-1 x -77,277,733 = 77,277,733
Notice both answers equal 77,277,733
With that explanation out of the way, let's continue. Next, we take the number 77,277,733 and divide it by 2:
77,277,733 ÷ 2 = 38,638,866.5
If the quotient is a whole number, then 2 and 38,638,866.5 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 | 77,277,733 | |
| -1 | -77,277,733 |
Now, we try dividing 77,277,733 by 3:
77,277,733 ÷ 3 = 25,759,244.3333
If the quotient is a whole number, then 3 and 25,759,244.3333 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 | 77,277,733 | |
| -1 | -77,277,733 |
Let's try dividing by 4:
77,277,733 ÷ 4 = 19,319,433.25
If the quotient is a whole number, then 4 and 19,319,433.25 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 | 77,277,733 | |
| -1 | 77,277,733 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 67 | 221 | 289 | 307 | 871 | 1,139 | 3,757 | 3,991 | 5,219 | 14,807 | 19,363 | 20,569 | 67,847 | 88,723 | 251,719 | 267,397 | 349,673 | 1,153,399 | 4,545,749 | 5,944,441 | 77,277,733 |
| -1 | -13 | -17 | -67 | -221 | -289 | -307 | -871 | -1,139 | -3,757 | -3,991 | -5,219 | -14,807 | -19,363 | -20,569 | -67,847 | -88,723 | -251,719 | -267,397 | -349,673 | -1,153,399 | -4,545,749 | -5,944,441 | -77,277,733 |
Here are some more numbers to try:
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