A:
Positive:
1 x 651455455 x 1302910923 x 2832415115 x 566483643 x 101315881 x 739453215 x 202634405 x 14789
Negative:
-1 x -65145545-5 x -13029109-23 x -2832415-115 x -566483-643 x -101315-881 x -73945-3215 x -20263-4405 x -14789
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 65,145,545, 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 | 65,145,545 | |
| -1 | -65,145,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,145,545.
Example:
1 x 65,145,545 = 65,145,545
and
-1 x -65,145,545 = 65,145,545
Notice both answers equal 65,145,545
With that explanation out of the way, let's continue. Next, we take the number 65,145,545 and divide it by 2:
65,145,545 ÷ 2 = 32,572,772.5
If the quotient is a whole number, then 2 and 32,572,772.5 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 | 65,145,545 | |
| -1 | -65,145,545 |
Now, we try dividing 65,145,545 by 3:
65,145,545 ÷ 3 = 21,715,181.6667
If the quotient is a whole number, then 3 and 21,715,181.6667 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 | 65,145,545 | |
| -1 | -65,145,545 |
Let's try dividing by 4:
65,145,545 ÷ 4 = 16,286,386.25
If the quotient is a whole number, then 4 and 16,286,386.25 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 | 65,145,545 | |
| -1 | 65,145,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 643 | 881 | 3,215 | 4,405 | 14,789 | 20,263 | 73,945 | 101,315 | 566,483 | 2,832,415 | 13,029,109 | 65,145,545 |
| -1 | -5 | -23 | -115 | -643 | -881 | -3,215 | -4,405 | -14,789 | -20,263 | -73,945 | -101,315 | -566,483 | -2,832,415 | -13,029,109 | -65,145,545 |
Here are some more numbers to try:
Try the factor calculator