A:
Positive:
1 x 21134755 x 4226957 x 30192513 x 16257525 x 8453935 x 6038565 x 3251591 x 23225175 x 12077325 x 6503455 x 4645929 x 2275
Negative:
-1 x -2113475-5 x -422695-7 x -301925-13 x -162575-25 x -84539-35 x -60385-65 x -32515-91 x -23225-175 x -12077-325 x -6503-455 x -4645-929 x -2275
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 2,113,475, 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 | 2,113,475 | |
| -1 | -2,113,475 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,113,475.
Example:
1 x 2,113,475 = 2,113,475
and
-1 x -2,113,475 = 2,113,475
Notice both answers equal 2,113,475
With that explanation out of the way, let's continue. Next, we take the number 2,113,475 and divide it by 2:
2,113,475 ÷ 2 = 1,056,737.5
If the quotient is a whole number, then 2 and 1,056,737.5 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 | 2,113,475 | |
| -1 | -2,113,475 |
Now, we try dividing 2,113,475 by 3:
2,113,475 ÷ 3 = 704,491.6667
If the quotient is a whole number, then 3 and 704,491.6667 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 | 2,113,475 | |
| -1 | -2,113,475 |
Let's try dividing by 4:
2,113,475 ÷ 4 = 528,368.75
If the quotient is a whole number, then 4 and 528,368.75 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 | 2,113,475 | |
| -1 | 2,113,475 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 25 | 35 | 65 | 91 | 175 | 325 | 455 | 929 | 2,275 | 4,645 | 6,503 | 12,077 | 23,225 | 32,515 | 60,385 | 84,539 | 162,575 | 301,925 | 422,695 | 2,113,475 |
| -1 | -5 | -7 | -13 | -25 | -35 | -65 | -91 | -175 | -325 | -455 | -929 | -2,275 | -4,645 | -6,503 | -12,077 | -23,225 | -32,515 | -60,385 | -84,539 | -162,575 | -301,925 | -422,695 | -2,113,475 |
Here are some more numbers to try:
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