A:
Positive:
1 x 610671855 x 1221343723 x 265509529 x 2105765115 x 531019145 x 421153667 x 915553335 x 18311
Negative:
-1 x -61067185-5 x -12213437-23 x -2655095-29 x -2105765-115 x -531019-145 x -421153-667 x -91555-3335 x -18311
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 61,067,185, 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 | 61,067,185 | |
| -1 | -61,067,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,067,185.
Example:
1 x 61,067,185 = 61,067,185
and
-1 x -61,067,185 = 61,067,185
Notice both answers equal 61,067,185
With that explanation out of the way, let's continue. Next, we take the number 61,067,185 and divide it by 2:
61,067,185 ÷ 2 = 30,533,592.5
If the quotient is a whole number, then 2 and 30,533,592.5 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 | 61,067,185 | |
| -1 | -61,067,185 |
Now, we try dividing 61,067,185 by 3:
61,067,185 ÷ 3 = 20,355,728.3333
If the quotient is a whole number, then 3 and 20,355,728.3333 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 | 61,067,185 | |
| -1 | -61,067,185 |
Let's try dividing by 4:
61,067,185 ÷ 4 = 15,266,796.25
If the quotient is a whole number, then 4 and 15,266,796.25 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 | 61,067,185 | |
| -1 | 61,067,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 29 | 115 | 145 | 667 | 3,335 | 18,311 | 91,555 | 421,153 | 531,019 | 2,105,765 | 2,655,095 | 12,213,437 | 61,067,185 |
| -1 | -5 | -23 | -29 | -115 | -145 | -667 | -3,335 | -18,311 | -91,555 | -421,153 | -531,019 | -2,105,765 | -2,655,095 | -12,213,437 | -61,067,185 |
Here are some more numbers to try:
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