A:
Positive:
1 x 12215160111 x 1110469113 x 9396277143 x 854207151 x 8089511661 x 735411963 x 622275657 x 21593
Negative:
-1 x -122151601-11 x -11104691-13 x -9396277-143 x -854207-151 x -808951-1661 x -73541-1963 x -62227-5657 x -21593
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 122,151,601, 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 | 122,151,601 | |
| -1 | -122,151,601 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,151,601.
Example:
1 x 122,151,601 = 122,151,601
and
-1 x -122,151,601 = 122,151,601
Notice both answers equal 122,151,601
With that explanation out of the way, let's continue. Next, we take the number 122,151,601 and divide it by 2:
122,151,601 ÷ 2 = 61,075,800.5
If the quotient is a whole number, then 2 and 61,075,800.5 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 | 122,151,601 | |
| -1 | -122,151,601 |
Now, we try dividing 122,151,601 by 3:
122,151,601 ÷ 3 = 40,717,200.3333
If the quotient is a whole number, then 3 and 40,717,200.3333 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 | 122,151,601 | |
| -1 | -122,151,601 |
Let's try dividing by 4:
122,151,601 ÷ 4 = 30,537,900.25
If the quotient is a whole number, then 4 and 30,537,900.25 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 | 122,151,601 | |
| -1 | 122,151,601 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 151 | 1,661 | 1,963 | 5,657 | 21,593 | 62,227 | 73,541 | 808,951 | 854,207 | 9,396,277 | 11,104,691 | 122,151,601 |
| -1 | -11 | -13 | -143 | -151 | -1,661 | -1,963 | -5,657 | -21,593 | -62,227 | -73,541 | -808,951 | -854,207 | -9,396,277 | -11,104,691 | -122,151,601 |
Here are some more numbers to try:
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