A:
Positive:
1 x 261306855 x 52261377 x 373295535 x 746591113 x 231245565 x 46249791 x 330353955 x 6607
Negative:
-1 x -26130685-5 x -5226137-7 x -3732955-35 x -746591-113 x -231245-565 x -46249-791 x -33035-3955 x -6607
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 26,130,685, 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 | 26,130,685 | |
| -1 | -26,130,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,130,685.
Example:
1 x 26,130,685 = 26,130,685
and
-1 x -26,130,685 = 26,130,685
Notice both answers equal 26,130,685
With that explanation out of the way, let's continue. Next, we take the number 26,130,685 and divide it by 2:
26,130,685 ÷ 2 = 13,065,342.5
If the quotient is a whole number, then 2 and 13,065,342.5 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 | 26,130,685 | |
| -1 | -26,130,685 |
Now, we try dividing 26,130,685 by 3:
26,130,685 ÷ 3 = 8,710,228.3333
If the quotient is a whole number, then 3 and 8,710,228.3333 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 | 26,130,685 | |
| -1 | -26,130,685 |
Let's try dividing by 4:
26,130,685 ÷ 4 = 6,532,671.25
If the quotient is a whole number, then 4 and 6,532,671.25 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 | 26,130,685 | |
| -1 | 26,130,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 113 | 565 | 791 | 3,955 | 6,607 | 33,035 | 46,249 | 231,245 | 746,591 | 3,732,955 | 5,226,137 | 26,130,685 |
| -1 | -5 | -7 | -35 | -113 | -565 | -791 | -3,955 | -6,607 | -33,035 | -46,249 | -231,245 | -746,591 | -3,732,955 | -5,226,137 | -26,130,685 |
Here are some more numbers to try:
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