A:
Positive:
1 x 513456555 x 1026913143 x 119408579 x 649945215 x 238817395 x 1299893023 x 169853397 x 15115
Negative:
-1 x -51345655-5 x -10269131-43 x -1194085-79 x -649945-215 x -238817-395 x -129989-3023 x -16985-3397 x -15115
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 51,345,655, 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 | 51,345,655 | |
| -1 | -51,345,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,345,655.
Example:
1 x 51,345,655 = 51,345,655
and
-1 x -51,345,655 = 51,345,655
Notice both answers equal 51,345,655
With that explanation out of the way, let's continue. Next, we take the number 51,345,655 and divide it by 2:
51,345,655 ÷ 2 = 25,672,827.5
If the quotient is a whole number, then 2 and 25,672,827.5 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 | 51,345,655 | |
| -1 | -51,345,655 |
Now, we try dividing 51,345,655 by 3:
51,345,655 ÷ 3 = 17,115,218.3333
If the quotient is a whole number, then 3 and 17,115,218.3333 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 | 51,345,655 | |
| -1 | -51,345,655 |
Let's try dividing by 4:
51,345,655 ÷ 4 = 12,836,413.75
If the quotient is a whole number, then 4 and 12,836,413.75 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 | 51,345,655 | |
| -1 | 51,345,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 79 | 215 | 395 | 3,023 | 3,397 | 15,115 | 16,985 | 129,989 | 238,817 | 649,945 | 1,194,085 | 10,269,131 | 51,345,655 |
| -1 | -5 | -43 | -79 | -215 | -395 | -3,023 | -3,397 | -15,115 | -16,985 | -129,989 | -238,817 | -649,945 | -1,194,085 | -10,269,131 | -51,345,655 |
Here are some more numbers to try:
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