A:
Positive:
1 x 6115560113 x 470427747 x 1301183101 x 605501611 x 100091991 x 617111313 x 465774747 x 12883
Negative:
-1 x -61155601-13 x -4704277-47 x -1301183-101 x -605501-611 x -100091-991 x -61711-1313 x -46577-4747 x -12883
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 61,155,601, 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 | 61,155,601 | |
| -1 | -61,155,601 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,155,601.
Example:
1 x 61,155,601 = 61,155,601
and
-1 x -61,155,601 = 61,155,601
Notice both answers equal 61,155,601
With that explanation out of the way, let's continue. Next, we take the number 61,155,601 and divide it by 2:
61,155,601 ÷ 2 = 30,577,800.5
If the quotient is a whole number, then 2 and 30,577,800.5 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 | 61,155,601 | |
| -1 | -61,155,601 |
Now, we try dividing 61,155,601 by 3:
61,155,601 ÷ 3 = 20,385,200.3333
If the quotient is a whole number, then 3 and 20,385,200.3333 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 | 61,155,601 | |
| -1 | -61,155,601 |
Let's try dividing by 4:
61,155,601 ÷ 4 = 15,288,900.25
If the quotient is a whole number, then 4 and 15,288,900.25 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 | 61,155,601 | |
| -1 | 61,155,601 |
If you did it right, you will end up with this table:
| 1 | 13 | 47 | 101 | 611 | 991 | 1,313 | 4,747 | 12,883 | 46,577 | 61,711 | 100,091 | 605,501 | 1,301,183 | 4,704,277 | 61,155,601 |
| -1 | -13 | -47 | -101 | -611 | -991 | -1,313 | -4,747 | -12,883 | -46,577 | -61,711 | -100,091 | -605,501 | -1,301,183 | -4,704,277 | -61,155,601 |
Here are some more numbers to try:
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