A:
Positive:
1 x 2420142117 x 142361319 x 127375931 x 780691323 x 74927527 x 45923589 x 410892417 x 10013
Negative:
-1 x -24201421-17 x -1423613-19 x -1273759-31 x -780691-323 x -74927-527 x -45923-589 x -41089-2417 x -10013
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 24,201,421, 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 | 24,201,421 | |
| -1 | -24,201,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,201,421.
Example:
1 x 24,201,421 = 24,201,421
and
-1 x -24,201,421 = 24,201,421
Notice both answers equal 24,201,421
With that explanation out of the way, let's continue. Next, we take the number 24,201,421 and divide it by 2:
24,201,421 ÷ 2 = 12,100,710.5
If the quotient is a whole number, then 2 and 12,100,710.5 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 | 24,201,421 | |
| -1 | -24,201,421 |
Now, we try dividing 24,201,421 by 3:
24,201,421 ÷ 3 = 8,067,140.3333
If the quotient is a whole number, then 3 and 8,067,140.3333 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 | 24,201,421 | |
| -1 | -24,201,421 |
Let's try dividing by 4:
24,201,421 ÷ 4 = 6,050,355.25
If the quotient is a whole number, then 4 and 6,050,355.25 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 | 24,201,421 | |
| -1 | 24,201,421 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 31 | 323 | 527 | 589 | 2,417 | 10,013 | 41,089 | 45,923 | 74,927 | 780,691 | 1,273,759 | 1,423,613 | 24,201,421 |
| -1 | -17 | -19 | -31 | -323 | -527 | -589 | -2,417 | -10,013 | -41,089 | -45,923 | -74,927 | -780,691 | -1,273,759 | -1,423,613 | -24,201,421 |
Here are some more numbers to try:
Try the factor calculator