A:
Positive:
1 x 2165452311 x 196859323 x 94150131 x 698533121 x 178963251 x 86273253 x 85591341 x 63503713 x 303712761 x 78432783 x 77813751 x 5773
Negative:
-1 x -21654523-11 x -1968593-23 x -941501-31 x -698533-121 x -178963-251 x -86273-253 x -85591-341 x -63503-713 x -30371-2761 x -7843-2783 x -7781-3751 x -5773
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 21,654,523, 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 | 21,654,523 | |
| -1 | -21,654,523 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,654,523.
Example:
1 x 21,654,523 = 21,654,523
and
-1 x -21,654,523 = 21,654,523
Notice both answers equal 21,654,523
With that explanation out of the way, let's continue. Next, we take the number 21,654,523 and divide it by 2:
21,654,523 ÷ 2 = 10,827,261.5
If the quotient is a whole number, then 2 and 10,827,261.5 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 | 21,654,523 | |
| -1 | -21,654,523 |
Now, we try dividing 21,654,523 by 3:
21,654,523 ÷ 3 = 7,218,174.3333
If the quotient is a whole number, then 3 and 7,218,174.3333 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 | 21,654,523 | |
| -1 | -21,654,523 |
Let's try dividing by 4:
21,654,523 ÷ 4 = 5,413,630.75
If the quotient is a whole number, then 4 and 5,413,630.75 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 | 21,654,523 | |
| -1 | 21,654,523 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 31 | 121 | 251 | 253 | 341 | 713 | 2,761 | 2,783 | 3,751 | 5,773 | 7,781 | 7,843 | 30,371 | 63,503 | 85,591 | 86,273 | 178,963 | 698,533 | 941,501 | 1,968,593 | 21,654,523 |
| -1 | -11 | -23 | -31 | -121 | -251 | -253 | -341 | -713 | -2,761 | -2,783 | -3,751 | -5,773 | -7,781 | -7,843 | -30,371 | -63,503 | -85,591 | -86,273 | -178,963 | -698,533 | -941,501 | -1,968,593 | -21,654,523 |
Here are some more numbers to try:
Try the factor calculator