A:
Positive:
1 x 192427755 x 384855525 x 76971137 x 52007571 x 271025185 x 104015293 x 65675355 x 54205925 x 208031465 x 131351775 x 108412627 x 7325
Negative:
-1 x -19242775-5 x -3848555-25 x -769711-37 x -520075-71 x -271025-185 x -104015-293 x -65675-355 x -54205-925 x -20803-1465 x -13135-1775 x -10841-2627 x -7325
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 19,242,775, 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 | 19,242,775 | |
| -1 | -19,242,775 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,242,775.
Example:
1 x 19,242,775 = 19,242,775
and
-1 x -19,242,775 = 19,242,775
Notice both answers equal 19,242,775
With that explanation out of the way, let's continue. Next, we take the number 19,242,775 and divide it by 2:
19,242,775 ÷ 2 = 9,621,387.5
If the quotient is a whole number, then 2 and 9,621,387.5 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 | 19,242,775 | |
| -1 | -19,242,775 |
Now, we try dividing 19,242,775 by 3:
19,242,775 ÷ 3 = 6,414,258.3333
If the quotient is a whole number, then 3 and 6,414,258.3333 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 | 19,242,775 | |
| -1 | -19,242,775 |
Let's try dividing by 4:
19,242,775 ÷ 4 = 4,810,693.75
If the quotient is a whole number, then 4 and 4,810,693.75 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 | 19,242,775 | |
| -1 | 19,242,775 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 37 | 71 | 185 | 293 | 355 | 925 | 1,465 | 1,775 | 2,627 | 7,325 | 10,841 | 13,135 | 20,803 | 54,205 | 65,675 | 104,015 | 271,025 | 520,075 | 769,711 | 3,848,555 | 19,242,775 |
| -1 | -5 | -25 | -37 | -71 | -185 | -293 | -355 | -925 | -1,465 | -1,775 | -2,627 | -7,325 | -10,841 | -13,135 | -20,803 | -54,205 | -65,675 | -104,015 | -271,025 | -520,075 | -769,711 | -3,848,555 | -19,242,775 |
Here are some more numbers to try:
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