A:
Positive:
1 x 31024155 x 62048317 x 18249519 x 16328585 x 3649995 x 32657113 x 27455289 x 10735323 x 9605565 x 54911445 x 21471615 x 1921
Negative:
-1 x -3102415-5 x -620483-17 x -182495-19 x -163285-85 x -36499-95 x -32657-113 x -27455-289 x -10735-323 x -9605-565 x -5491-1445 x -2147-1615 x -1921
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 3,102,415, 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 | 3,102,415 | |
| -1 | -3,102,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,102,415.
Example:
1 x 3,102,415 = 3,102,415
and
-1 x -3,102,415 = 3,102,415
Notice both answers equal 3,102,415
With that explanation out of the way, let's continue. Next, we take the number 3,102,415 and divide it by 2:
3,102,415 ÷ 2 = 1,551,207.5
If the quotient is a whole number, then 2 and 1,551,207.5 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 | 3,102,415 | |
| -1 | -3,102,415 |
Now, we try dividing 3,102,415 by 3:
3,102,415 ÷ 3 = 1,034,138.3333
If the quotient is a whole number, then 3 and 1,034,138.3333 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 | 3,102,415 | |
| -1 | -3,102,415 |
Let's try dividing by 4:
3,102,415 ÷ 4 = 775,603.75
If the quotient is a whole number, then 4 and 775,603.75 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 | 3,102,415 | |
| -1 | 3,102,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 85 | 95 | 113 | 289 | 323 | 565 | 1,445 | 1,615 | 1,921 | 2,147 | 5,491 | 9,605 | 10,735 | 27,455 | 32,657 | 36,499 | 163,285 | 182,495 | 620,483 | 3,102,415 |
| -1 | -5 | -17 | -19 | -85 | -95 | -113 | -289 | -323 | -565 | -1,445 | -1,615 | -1,921 | -2,147 | -5,491 | -9,605 | -10,735 | -27,455 | -32,657 | -36,499 | -163,285 | -182,495 | -620,483 | -3,102,415 |
Here are some more numbers to try:
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