A:
Positive:
1 x 7845043713 x 6034649101 x 776737149 x 526513401 x 1956371313 x 597491937 x 405015213 x 15049
Negative:
-1 x -78450437-13 x -6034649-101 x -776737-149 x -526513-401 x -195637-1313 x -59749-1937 x -40501-5213 x -15049
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 78,450,437, 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 | 78,450,437 | |
| -1 | -78,450,437 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 78,450,437.
Example:
1 x 78,450,437 = 78,450,437
and
-1 x -78,450,437 = 78,450,437
Notice both answers equal 78,450,437
With that explanation out of the way, let's continue. Next, we take the number 78,450,437 and divide it by 2:
78,450,437 ÷ 2 = 39,225,218.5
If the quotient is a whole number, then 2 and 39,225,218.5 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 | 78,450,437 | |
| -1 | -78,450,437 |
Now, we try dividing 78,450,437 by 3:
78,450,437 ÷ 3 = 26,150,145.6667
If the quotient is a whole number, then 3 and 26,150,145.6667 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 | 78,450,437 | |
| -1 | -78,450,437 |
Let's try dividing by 4:
78,450,437 ÷ 4 = 19,612,609.25
If the quotient is a whole number, then 4 and 19,612,609.25 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 | 78,450,437 | |
| -1 | 78,450,437 |
If you did it right, you will end up with this table:
| 1 | 13 | 101 | 149 | 401 | 1,313 | 1,937 | 5,213 | 15,049 | 40,501 | 59,749 | 195,637 | 526,513 | 776,737 | 6,034,649 | 78,450,437 |
| -1 | -13 | -101 | -149 | -401 | -1,313 | -1,937 | -5,213 | -15,049 | -40,501 | -59,749 | -195,637 | -526,513 | -776,737 | -6,034,649 | -78,450,437 |
Here are some more numbers to try:
Try the factor calculator