A:
Positive:
1 x 6101515917 x 358912723 x 265283329 x 2103971391 x 156049493 x 123763667 x 914775381 x 11339
Negative:
-1 x -61015159-17 x -3589127-23 x -2652833-29 x -2103971-391 x -156049-493 x -123763-667 x -91477-5381 x -11339
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 61,015,159, 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 | 61,015,159 | |
| -1 | -61,015,159 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,015,159.
Example:
1 x 61,015,159 = 61,015,159
and
-1 x -61,015,159 = 61,015,159
Notice both answers equal 61,015,159
With that explanation out of the way, let's continue. Next, we take the number 61,015,159 and divide it by 2:
61,015,159 ÷ 2 = 30,507,579.5
If the quotient is a whole number, then 2 and 30,507,579.5 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 | 61,015,159 | |
| -1 | -61,015,159 |
Now, we try dividing 61,015,159 by 3:
61,015,159 ÷ 3 = 20,338,386.3333
If the quotient is a whole number, then 3 and 20,338,386.3333 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 | 61,015,159 | |
| -1 | -61,015,159 |
Let's try dividing by 4:
61,015,159 ÷ 4 = 15,253,789.75
If the quotient is a whole number, then 4 and 15,253,789.75 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 | 61,015,159 | |
| -1 | 61,015,159 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 29 | 391 | 493 | 667 | 5,381 | 11,339 | 91,477 | 123,763 | 156,049 | 2,103,971 | 2,652,833 | 3,589,127 | 61,015,159 |
| -1 | -17 | -23 | -29 | -391 | -493 | -667 | -5,381 | -11,339 | -91,477 | -123,763 | -156,049 | -2,103,971 | -2,652,833 | -3,589,127 | -61,015,159 |
Here are some more numbers to try:
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