A:
Positive:
1 x 261531555 x 52306317 x 373616535 x 747233383 x 682851915 x 136571951 x 134052681 x 9755
Negative:
-1 x -26153155-5 x -5230631-7 x -3736165-35 x -747233-383 x -68285-1915 x -13657-1951 x -13405-2681 x -9755
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 26,153,155, 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 | 26,153,155 | |
| -1 | -26,153,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,153,155.
Example:
1 x 26,153,155 = 26,153,155
and
-1 x -26,153,155 = 26,153,155
Notice both answers equal 26,153,155
With that explanation out of the way, let's continue. Next, we take the number 26,153,155 and divide it by 2:
26,153,155 ÷ 2 = 13,076,577.5
If the quotient is a whole number, then 2 and 13,076,577.5 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 | 26,153,155 | |
| -1 | -26,153,155 |
Now, we try dividing 26,153,155 by 3:
26,153,155 ÷ 3 = 8,717,718.3333
If the quotient is a whole number, then 3 and 8,717,718.3333 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 | 26,153,155 | |
| -1 | -26,153,155 |
Let's try dividing by 4:
26,153,155 ÷ 4 = 6,538,288.75
If the quotient is a whole number, then 4 and 6,538,288.75 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 | 26,153,155 | |
| -1 | 26,153,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 383 | 1,915 | 1,951 | 2,681 | 9,755 | 13,405 | 13,657 | 68,285 | 747,233 | 3,736,165 | 5,230,631 | 26,153,155 |
| -1 | -5 | -7 | -35 | -383 | -1,915 | -1,951 | -2,681 | -9,755 | -13,405 | -13,657 | -68,285 | -747,233 | -3,736,165 | -5,230,631 | -26,153,155 |
Here are some more numbers to try:
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