A:
Positive:
1 x 618127555 x 1236255137 x 167061547 x 1315165185 x 334123235 x 2630331739 x 355457109 x 8695
Negative:
-1 x -61812755-5 x -12362551-37 x -1670615-47 x -1315165-185 x -334123-235 x -263033-1739 x -35545-7109 x -8695
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 61,812,755, 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 | 61,812,755 | |
| -1 | -61,812,755 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,812,755.
Example:
1 x 61,812,755 = 61,812,755
and
-1 x -61,812,755 = 61,812,755
Notice both answers equal 61,812,755
With that explanation out of the way, let's continue. Next, we take the number 61,812,755 and divide it by 2:
61,812,755 ÷ 2 = 30,906,377.5
If the quotient is a whole number, then 2 and 30,906,377.5 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 | 61,812,755 | |
| -1 | -61,812,755 |
Now, we try dividing 61,812,755 by 3:
61,812,755 ÷ 3 = 20,604,251.6667
If the quotient is a whole number, then 3 and 20,604,251.6667 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 | 61,812,755 | |
| -1 | -61,812,755 |
Let's try dividing by 4:
61,812,755 ÷ 4 = 15,453,188.75
If the quotient is a whole number, then 4 and 15,453,188.75 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 | 61,812,755 | |
| -1 | 61,812,755 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 47 | 185 | 235 | 1,739 | 7,109 | 8,695 | 35,545 | 263,033 | 334,123 | 1,315,165 | 1,670,615 | 12,362,551 | 61,812,755 |
| -1 | -5 | -37 | -47 | -185 | -235 | -1,739 | -7,109 | -8,695 | -35,545 | -263,033 | -334,123 | -1,315,165 | -1,670,615 | -12,362,551 | -61,812,755 |
Here are some more numbers to try:
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