A:
Positive:
1 x 6858394761 x 112432767 x 102364197 x 707051173 x 3964394087 x 167815917 x 115916499 x 10553
Negative:
-1 x -68583947-61 x -1124327-67 x -1023641-97 x -707051-173 x -396439-4087 x -16781-5917 x -11591-6499 x -10553
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 68,583,947, 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 | 68,583,947 | |
| -1 | -68,583,947 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,583,947.
Example:
1 x 68,583,947 = 68,583,947
and
-1 x -68,583,947 = 68,583,947
Notice both answers equal 68,583,947
With that explanation out of the way, let's continue. Next, we take the number 68,583,947 and divide it by 2:
68,583,947 ÷ 2 = 34,291,973.5
If the quotient is a whole number, then 2 and 34,291,973.5 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 | 68,583,947 | |
| -1 | -68,583,947 |
Now, we try dividing 68,583,947 by 3:
68,583,947 ÷ 3 = 22,861,315.6667
If the quotient is a whole number, then 3 and 22,861,315.6667 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 | 68,583,947 | |
| -1 | -68,583,947 |
Let's try dividing by 4:
68,583,947 ÷ 4 = 17,145,986.75
If the quotient is a whole number, then 4 and 17,145,986.75 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 | 68,583,947 | |
| -1 | 68,583,947 |
If you did it right, you will end up with this table:
| 1 | 61 | 67 | 97 | 173 | 4,087 | 5,917 | 6,499 | 10,553 | 11,591 | 16,781 | 396,439 | 707,051 | 1,023,641 | 1,124,327 | 68,583,947 |
| -1 | -61 | -67 | -97 | -173 | -4,087 | -5,917 | -6,499 | -10,553 | -11,591 | -16,781 | -396,439 | -707,051 | -1,023,641 | -1,124,327 | -68,583,947 |
Here are some more numbers to try:
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