A:
Positive:
1 x 18971755 x 3794357 x 27102525 x 7588735 x 5420537 x 51275175 x 10841185 x 10255259 x 7325293 x 6475925 x 20511295 x 1465
Negative:
-1 x -1897175-5 x -379435-7 x -271025-25 x -75887-35 x -54205-37 x -51275-175 x -10841-185 x -10255-259 x -7325-293 x -6475-925 x -2051-1295 x -1465
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 1,897,175, 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 | 1,897,175 | |
| -1 | -1,897,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,897,175.
Example:
1 x 1,897,175 = 1,897,175
and
-1 x -1,897,175 = 1,897,175
Notice both answers equal 1,897,175
With that explanation out of the way, let's continue. Next, we take the number 1,897,175 and divide it by 2:
1,897,175 ÷ 2 = 948,587.5
If the quotient is a whole number, then 2 and 948,587.5 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 | 1,897,175 | |
| -1 | -1,897,175 |
Now, we try dividing 1,897,175 by 3:
1,897,175 ÷ 3 = 632,391.6667
If the quotient is a whole number, then 3 and 632,391.6667 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 | 1,897,175 | |
| -1 | -1,897,175 |
Let's try dividing by 4:
1,897,175 ÷ 4 = 474,293.75
If the quotient is a whole number, then 4 and 474,293.75 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 | 1,897,175 | |
| -1 | 1,897,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 37 | 175 | 185 | 259 | 293 | 925 | 1,295 | 1,465 | 2,051 | 6,475 | 7,325 | 10,255 | 10,841 | 51,275 | 54,205 | 75,887 | 271,025 | 379,435 | 1,897,175 |
| -1 | -5 | -7 | -25 | -35 | -37 | -175 | -185 | -259 | -293 | -925 | -1,295 | -1,465 | -2,051 | -6,475 | -7,325 | -10,255 | -10,841 | -51,275 | -54,205 | -75,887 | -271,025 | -379,435 | -1,897,175 |
Here are some more numbers to try:
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