A:
Positive:
1 x 725221077 x 1036030119 x 381695349 x 148004361 x 1188887133 x 545279427 x 169841931 x 778971159 x 625731277 x 567912989 x 242638113 x 8939
Negative:
-1 x -72522107-7 x -10360301-19 x -3816953-49 x -1480043-61 x -1188887-133 x -545279-427 x -169841-931 x -77897-1159 x -62573-1277 x -56791-2989 x -24263-8113 x -8939
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 72,522,107, 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 | 72,522,107 | |
| -1 | -72,522,107 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,522,107.
Example:
1 x 72,522,107 = 72,522,107
and
-1 x -72,522,107 = 72,522,107
Notice both answers equal 72,522,107
With that explanation out of the way, let's continue. Next, we take the number 72,522,107 and divide it by 2:
72,522,107 ÷ 2 = 36,261,053.5
If the quotient is a whole number, then 2 and 36,261,053.5 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 | 72,522,107 | |
| -1 | -72,522,107 |
Now, we try dividing 72,522,107 by 3:
72,522,107 ÷ 3 = 24,174,035.6667
If the quotient is a whole number, then 3 and 24,174,035.6667 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 | 72,522,107 | |
| -1 | -72,522,107 |
Let's try dividing by 4:
72,522,107 ÷ 4 = 18,130,526.75
If the quotient is a whole number, then 4 and 18,130,526.75 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 | 72,522,107 | |
| -1 | 72,522,107 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 49 | 61 | 133 | 427 | 931 | 1,159 | 1,277 | 2,989 | 8,113 | 8,939 | 24,263 | 56,791 | 62,573 | 77,897 | 169,841 | 545,279 | 1,188,887 | 1,480,043 | 3,816,953 | 10,360,301 | 72,522,107 |
| -1 | -7 | -19 | -49 | -61 | -133 | -427 | -931 | -1,159 | -1,277 | -2,989 | -8,113 | -8,939 | -24,263 | -56,791 | -62,573 | -77,897 | -169,841 | -545,279 | -1,188,887 | -1,480,043 | -3,816,953 | -10,360,301 | -72,522,107 |
Here are some more numbers to try:
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