A:
Positive:
1 x 214616355 x 429232713 x 165089565 x 33017973 x 293995365 x 58799949 x 226154523 x 4745
Negative:
-1 x -21461635-5 x -4292327-13 x -1650895-65 x -330179-73 x -293995-365 x -58799-949 x -22615-4523 x -4745
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 21,461,635, 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 | 21,461,635 | |
| -1 | -21,461,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,461,635.
Example:
1 x 21,461,635 = 21,461,635
and
-1 x -21,461,635 = 21,461,635
Notice both answers equal 21,461,635
With that explanation out of the way, let's continue. Next, we take the number 21,461,635 and divide it by 2:
21,461,635 ÷ 2 = 10,730,817.5
If the quotient is a whole number, then 2 and 10,730,817.5 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 | 21,461,635 | |
| -1 | -21,461,635 |
Now, we try dividing 21,461,635 by 3:
21,461,635 ÷ 3 = 7,153,878.3333
If the quotient is a whole number, then 3 and 7,153,878.3333 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 | 21,461,635 | |
| -1 | -21,461,635 |
Let's try dividing by 4:
21,461,635 ÷ 4 = 5,365,408.75
If the quotient is a whole number, then 4 and 5,365,408.75 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 | 21,461,635 | |
| -1 | 21,461,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 73 | 365 | 949 | 4,523 | 4,745 | 22,615 | 58,799 | 293,995 | 330,179 | 1,650,895 | 4,292,327 | 21,461,635 |
| -1 | -5 | -13 | -65 | -73 | -365 | -949 | -4,523 | -4,745 | -22,615 | -58,799 | -293,995 | -330,179 | -1,650,895 | -4,292,327 | -21,461,635 |
Here are some more numbers to try:
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