A:
Positive:
1 x 261356155 x 522712311 x 237596543 x 60780555 x 475193215 x 121561257 x 101695473 x 552551285 x 203391849 x 141352365 x 110512827 x 9245
Negative:
-1 x -26135615-5 x -5227123-11 x -2375965-43 x -607805-55 x -475193-215 x -121561-257 x -101695-473 x -55255-1285 x -20339-1849 x -14135-2365 x -11051-2827 x -9245
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 26,135,615, 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 | 26,135,615 | |
| -1 | -26,135,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,135,615.
Example:
1 x 26,135,615 = 26,135,615
and
-1 x -26,135,615 = 26,135,615
Notice both answers equal 26,135,615
With that explanation out of the way, let's continue. Next, we take the number 26,135,615 and divide it by 2:
26,135,615 ÷ 2 = 13,067,807.5
If the quotient is a whole number, then 2 and 13,067,807.5 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 | 26,135,615 | |
| -1 | -26,135,615 |
Now, we try dividing 26,135,615 by 3:
26,135,615 ÷ 3 = 8,711,871.6667
If the quotient is a whole number, then 3 and 8,711,871.6667 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 | 26,135,615 | |
| -1 | -26,135,615 |
Let's try dividing by 4:
26,135,615 ÷ 4 = 6,533,903.75
If the quotient is a whole number, then 4 and 6,533,903.75 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 | 26,135,615 | |
| -1 | 26,135,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 43 | 55 | 215 | 257 | 473 | 1,285 | 1,849 | 2,365 | 2,827 | 9,245 | 11,051 | 14,135 | 20,339 | 55,255 | 101,695 | 121,561 | 475,193 | 607,805 | 2,375,965 | 5,227,123 | 26,135,615 |
| -1 | -5 | -11 | -43 | -55 | -215 | -257 | -473 | -1,285 | -1,849 | -2,365 | -2,827 | -9,245 | -11,051 | -14,135 | -20,339 | -55,255 | -101,695 | -121,561 | -475,193 | -607,805 | -2,375,965 | -5,227,123 | -26,135,615 |
Here are some more numbers to try:
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