A:
Positive:
1 x 217524355 x 435048717 x 127955519 x 114486585 x 25591195 x 228973323 x 673451615 x 13469
Negative:
-1 x -21752435-5 x -4350487-17 x -1279555-19 x -1144865-85 x -255911-95 x -228973-323 x -67345-1615 x -13469
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 21,752,435, 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 | 21,752,435 | |
| -1 | -21,752,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,752,435.
Example:
1 x 21,752,435 = 21,752,435
and
-1 x -21,752,435 = 21,752,435
Notice both answers equal 21,752,435
With that explanation out of the way, let's continue. Next, we take the number 21,752,435 and divide it by 2:
21,752,435 ÷ 2 = 10,876,217.5
If the quotient is a whole number, then 2 and 10,876,217.5 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 | 21,752,435 | |
| -1 | -21,752,435 |
Now, we try dividing 21,752,435 by 3:
21,752,435 ÷ 3 = 7,250,811.6667
If the quotient is a whole number, then 3 and 7,250,811.6667 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 | 21,752,435 | |
| -1 | -21,752,435 |
Let's try dividing by 4:
21,752,435 ÷ 4 = 5,438,108.75
If the quotient is a whole number, then 4 and 5,438,108.75 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 | 21,752,435 | |
| -1 | 21,752,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 85 | 95 | 323 | 1,615 | 13,469 | 67,345 | 228,973 | 255,911 | 1,144,865 | 1,279,555 | 4,350,487 | 21,752,435 |
| -1 | -5 | -17 | -19 | -85 | -95 | -323 | -1,615 | -13,469 | -67,345 | -228,973 | -255,911 | -1,144,865 | -1,279,555 | -4,350,487 | -21,752,435 |
Here are some more numbers to try:
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