A:
Positive:
1 x 253651377 x 3623591131 x 193627139 x 182483199 x 127463917 x 27661973 x 260691393 x 18209
Negative:
-1 x -25365137-7 x -3623591-131 x -193627-139 x -182483-199 x -127463-917 x -27661-973 x -26069-1393 x -18209
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 25,365,137, 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 | 25,365,137 | |
| -1 | -25,365,137 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,365,137.
Example:
1 x 25,365,137 = 25,365,137
and
-1 x -25,365,137 = 25,365,137
Notice both answers equal 25,365,137
With that explanation out of the way, let's continue. Next, we take the number 25,365,137 and divide it by 2:
25,365,137 ÷ 2 = 12,682,568.5
If the quotient is a whole number, then 2 and 12,682,568.5 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 | 25,365,137 | |
| -1 | -25,365,137 |
Now, we try dividing 25,365,137 by 3:
25,365,137 ÷ 3 = 8,455,045.6667
If the quotient is a whole number, then 3 and 8,455,045.6667 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 | 25,365,137 | |
| -1 | -25,365,137 |
Let's try dividing by 4:
25,365,137 ÷ 4 = 6,341,284.25
If the quotient is a whole number, then 4 and 6,341,284.25 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 | 25,365,137 | |
| -1 | 25,365,137 |
If you did it right, you will end up with this table:
| 1 | 7 | 131 | 139 | 199 | 917 | 973 | 1,393 | 18,209 | 26,069 | 27,661 | 127,463 | 182,483 | 193,627 | 3,623,591 | 25,365,137 |
| -1 | -7 | -131 | -139 | -199 | -917 | -973 | -1,393 | -18,209 | -26,069 | -27,661 | -127,463 | -182,483 | -193,627 | -3,623,591 | -25,365,137 |
Here are some more numbers to try:
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