A:
Positive:
1 x 1510036155 x 302007237 x 2157194535 x 431438941 x 3683015205 x 736603287 x 5261451435 x 105229
Negative:
-1 x -151003615-5 x -30200723-7 x -21571945-35 x -4314389-41 x -3683015-205 x -736603-287 x -526145-1435 x -105229
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 151,003,615, 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 | 151,003,615 | |
| -1 | -151,003,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,003,615.
Example:
1 x 151,003,615 = 151,003,615
and
-1 x -151,003,615 = 151,003,615
Notice both answers equal 151,003,615
With that explanation out of the way, let's continue. Next, we take the number 151,003,615 and divide it by 2:
151,003,615 ÷ 2 = 75,501,807.5
If the quotient is a whole number, then 2 and 75,501,807.5 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 | 151,003,615 | |
| -1 | -151,003,615 |
Now, we try dividing 151,003,615 by 3:
151,003,615 ÷ 3 = 50,334,538.3333
If the quotient is a whole number, then 3 and 50,334,538.3333 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 | 151,003,615 | |
| -1 | -151,003,615 |
Let's try dividing by 4:
151,003,615 ÷ 4 = 37,750,903.75
If the quotient is a whole number, then 4 and 37,750,903.75 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 | 151,003,615 | |
| -1 | 151,003,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 105,229 | 526,145 | 736,603 | 3,683,015 | 4,314,389 | 21,571,945 | 30,200,723 | 151,003,615 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -105,229 | -526,145 | -736,603 | -3,683,015 | -4,314,389 | -21,571,945 | -30,200,723 | -151,003,615 |
Here are some more numbers to try:
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