A:
Positive:
1 x 1653046155 x 330609237 x 2361494535 x 472298953 x 3118955265 x 623791371 x 4455651855 x 89113
Negative:
-1 x -165304615-5 x -33060923-7 x -23614945-35 x -4722989-53 x -3118955-265 x -623791-371 x -445565-1855 x -89113
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 165,304,615, 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 | 165,304,615 | |
| -1 | -165,304,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,304,615.
Example:
1 x 165,304,615 = 165,304,615
and
-1 x -165,304,615 = 165,304,615
Notice both answers equal 165,304,615
With that explanation out of the way, let's continue. Next, we take the number 165,304,615 and divide it by 2:
165,304,615 ÷ 2 = 82,652,307.5
If the quotient is a whole number, then 2 and 82,652,307.5 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 | 165,304,615 | |
| -1 | -165,304,615 |
Now, we try dividing 165,304,615 by 3:
165,304,615 ÷ 3 = 55,101,538.3333
If the quotient is a whole number, then 3 and 55,101,538.3333 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 | 165,304,615 | |
| -1 | -165,304,615 |
Let's try dividing by 4:
165,304,615 ÷ 4 = 41,326,153.75
If the quotient is a whole number, then 4 and 41,326,153.75 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 | 165,304,615 | |
| -1 | 165,304,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 53 | 265 | 371 | 1,855 | 89,113 | 445,565 | 623,791 | 3,118,955 | 4,722,989 | 23,614,945 | 33,060,923 | 165,304,615 |
| -1 | -5 | -7 | -35 | -53 | -265 | -371 | -1,855 | -89,113 | -445,565 | -623,791 | -3,118,955 | -4,722,989 | -23,614,945 | -33,060,923 | -165,304,615 |
Here are some more numbers to try:
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