A:
Positive:
1 x 714231055 x 1428462113 x 549408565 x 1098817439 x 1626952195 x 325392503 x 285355707 x 12515
Negative:
-1 x -71423105-5 x -14284621-13 x -5494085-65 x -1098817-439 x -162695-2195 x -32539-2503 x -28535-5707 x -12515
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 71,423,105, 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 | 71,423,105 | |
| -1 | -71,423,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,423,105.
Example:
1 x 71,423,105 = 71,423,105
and
-1 x -71,423,105 = 71,423,105
Notice both answers equal 71,423,105
With that explanation out of the way, let's continue. Next, we take the number 71,423,105 and divide it by 2:
71,423,105 ÷ 2 = 35,711,552.5
If the quotient is a whole number, then 2 and 35,711,552.5 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 | 71,423,105 | |
| -1 | -71,423,105 |
Now, we try dividing 71,423,105 by 3:
71,423,105 ÷ 3 = 23,807,701.6667
If the quotient is a whole number, then 3 and 23,807,701.6667 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 | 71,423,105 | |
| -1 | -71,423,105 |
Let's try dividing by 4:
71,423,105 ÷ 4 = 17,855,776.25
If the quotient is a whole number, then 4 and 17,855,776.25 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 | 71,423,105 | |
| -1 | 71,423,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 439 | 2,195 | 2,503 | 5,707 | 12,515 | 28,535 | 32,539 | 162,695 | 1,098,817 | 5,494,085 | 14,284,621 | 71,423,105 |
| -1 | -5 | -13 | -65 | -439 | -2,195 | -2,503 | -5,707 | -12,515 | -28,535 | -32,539 | -162,695 | -1,098,817 | -5,494,085 | -14,284,621 | -71,423,105 |
Here are some more numbers to try:
Try the factor calculator