A:
Positive:
1 x 266134155 x 532268317 x 156549523 x 115710585 x 313099115 x 231421391 x 680651955 x 13613
Negative:
-1 x -26613415-5 x -5322683-17 x -1565495-23 x -1157105-85 x -313099-115 x -231421-391 x -68065-1955 x -13613
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 26,613,415, 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 | 26,613,415 | |
| -1 | -26,613,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,613,415.
Example:
1 x 26,613,415 = 26,613,415
and
-1 x -26,613,415 = 26,613,415
Notice both answers equal 26,613,415
With that explanation out of the way, let's continue. Next, we take the number 26,613,415 and divide it by 2:
26,613,415 ÷ 2 = 13,306,707.5
If the quotient is a whole number, then 2 and 13,306,707.5 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 | 26,613,415 | |
| -1 | -26,613,415 |
Now, we try dividing 26,613,415 by 3:
26,613,415 ÷ 3 = 8,871,138.3333
If the quotient is a whole number, then 3 and 8,871,138.3333 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 | 26,613,415 | |
| -1 | -26,613,415 |
Let's try dividing by 4:
26,613,415 ÷ 4 = 6,653,353.75
If the quotient is a whole number, then 4 and 6,653,353.75 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 | 26,613,415 | |
| -1 | 26,613,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 23 | 85 | 115 | 391 | 1,955 | 13,613 | 68,065 | 231,421 | 313,099 | 1,157,105 | 1,565,495 | 5,322,683 | 26,613,415 |
| -1 | -5 | -17 | -23 | -85 | -115 | -391 | -1,955 | -13,613 | -68,065 | -231,421 | -313,099 | -1,157,105 | -1,565,495 | -5,322,683 | -26,613,415 |
Here are some more numbers to try:
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