A:
Positive:
1 x 618140455 x 1236280961 x 1013345305 x 202669389 x 158905521 x 1186451945 x 317812605 x 23729
Negative:
-1 x -61814045-5 x -12362809-61 x -1013345-305 x -202669-389 x -158905-521 x -118645-1945 x -31781-2605 x -23729
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 61,814,045, 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 | 61,814,045 | |
| -1 | -61,814,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,814,045.
Example:
1 x 61,814,045 = 61,814,045
and
-1 x -61,814,045 = 61,814,045
Notice both answers equal 61,814,045
With that explanation out of the way, let's continue. Next, we take the number 61,814,045 and divide it by 2:
61,814,045 ÷ 2 = 30,907,022.5
If the quotient is a whole number, then 2 and 30,907,022.5 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 | 61,814,045 | |
| -1 | -61,814,045 |
Now, we try dividing 61,814,045 by 3:
61,814,045 ÷ 3 = 20,604,681.6667
If the quotient is a whole number, then 3 and 20,604,681.6667 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 | 61,814,045 | |
| -1 | -61,814,045 |
Let's try dividing by 4:
61,814,045 ÷ 4 = 15,453,511.25
If the quotient is a whole number, then 4 and 15,453,511.25 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 | 61,814,045 | |
| -1 | 61,814,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 61 | 305 | 389 | 521 | 1,945 | 2,605 | 23,729 | 31,781 | 118,645 | 158,905 | 202,669 | 1,013,345 | 12,362,809 | 61,814,045 |
| -1 | -5 | -61 | -305 | -389 | -521 | -1,945 | -2,605 | -23,729 | -31,781 | -118,645 | -158,905 | -202,669 | -1,013,345 | -12,362,809 | -61,814,045 |
Here are some more numbers to try:
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