A:
Positive:
1 x 7232641911 x 657512941 x 176405961 x 1185679121 x 597739239 x 302621451 x 160369671 x 1077892501 x 289192629 x 275114961 x 145797381 x 9799
Negative:
-1 x -72326419-11 x -6575129-41 x -1764059-61 x -1185679-121 x -597739-239 x -302621-451 x -160369-671 x -107789-2501 x -28919-2629 x -27511-4961 x -14579-7381 x -9799
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 72,326,419, 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 | 72,326,419 | |
| -1 | -72,326,419 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,326,419.
Example:
1 x 72,326,419 = 72,326,419
and
-1 x -72,326,419 = 72,326,419
Notice both answers equal 72,326,419
With that explanation out of the way, let's continue. Next, we take the number 72,326,419 and divide it by 2:
72,326,419 ÷ 2 = 36,163,209.5
If the quotient is a whole number, then 2 and 36,163,209.5 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 | 72,326,419 | |
| -1 | -72,326,419 |
Now, we try dividing 72,326,419 by 3:
72,326,419 ÷ 3 = 24,108,806.3333
If the quotient is a whole number, then 3 and 24,108,806.3333 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 | 72,326,419 | |
| -1 | -72,326,419 |
Let's try dividing by 4:
72,326,419 ÷ 4 = 18,081,604.75
If the quotient is a whole number, then 4 and 18,081,604.75 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 | 72,326,419 | |
| -1 | 72,326,419 |
If you did it right, you will end up with this table:
| 1 | 11 | 41 | 61 | 121 | 239 | 451 | 671 | 2,501 | 2,629 | 4,961 | 7,381 | 9,799 | 14,579 | 27,511 | 28,919 | 107,789 | 160,369 | 302,621 | 597,739 | 1,185,679 | 1,764,059 | 6,575,129 | 72,326,419 |
| -1 | -11 | -41 | -61 | -121 | -239 | -451 | -671 | -2,501 | -2,629 | -4,961 | -7,381 | -9,799 | -14,579 | -27,511 | -28,919 | -107,789 | -160,369 | -302,621 | -597,739 | -1,185,679 | -1,764,059 | -6,575,129 | -72,326,419 |
Here are some more numbers to try:
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