A:
Positive:
1 x 6536546155 x 13073092347 x 13907545235 x 2781509673 x 9712553365 x 1942514133 x 15815520665 x 31631
Negative:
-1 x -653654615-5 x -130730923-47 x -13907545-235 x -2781509-673 x -971255-3365 x -194251-4133 x -158155-20665 x -31631
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 653,654,615, 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 | 653,654,615 | |
| -1 | -653,654,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 653,654,615.
Example:
1 x 653,654,615 = 653,654,615
and
-1 x -653,654,615 = 653,654,615
Notice both answers equal 653,654,615
With that explanation out of the way, let's continue. Next, we take the number 653,654,615 and divide it by 2:
653,654,615 ÷ 2 = 326,827,307.5
If the quotient is a whole number, then 2 and 326,827,307.5 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 | 653,654,615 | |
| -1 | -653,654,615 |
Now, we try dividing 653,654,615 by 3:
653,654,615 ÷ 3 = 217,884,871.6667
If the quotient is a whole number, then 3 and 217,884,871.6667 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 | 653,654,615 | |
| -1 | -653,654,615 |
Let's try dividing by 4:
653,654,615 ÷ 4 = 163,413,653.75
If the quotient is a whole number, then 4 and 163,413,653.75 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 | 653,654,615 | |
| -1 | 653,654,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 235 | 673 | 3,365 | 4,133 | 20,665 | 31,631 | 158,155 | 194,251 | 971,255 | 2,781,509 | 13,907,545 | 130,730,923 | 653,654,615 |
| -1 | -5 | -47 | -235 | -673 | -3,365 | -4,133 | -20,665 | -31,631 | -158,155 | -194,251 | -971,255 | -2,781,509 | -13,907,545 | -130,730,923 | -653,654,615 |
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