A:
Positive:
1 x 8057224323 x 350314153 x 1520231157 x 513199421 x 1913831219 x 660973611 x 223138321 x 9683
Negative:
-1 x -80572243-23 x -3503141-53 x -1520231-157 x -513199-421 x -191383-1219 x -66097-3611 x -22313-8321 x -9683
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 80,572,243, 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 | 80,572,243 | |
| -1 | -80,572,243 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 80,572,243.
Example:
1 x 80,572,243 = 80,572,243
and
-1 x -80,572,243 = 80,572,243
Notice both answers equal 80,572,243
With that explanation out of the way, let's continue. Next, we take the number 80,572,243 and divide it by 2:
80,572,243 ÷ 2 = 40,286,121.5
If the quotient is a whole number, then 2 and 40,286,121.5 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 | 80,572,243 | |
| -1 | -80,572,243 |
Now, we try dividing 80,572,243 by 3:
80,572,243 ÷ 3 = 26,857,414.3333
If the quotient is a whole number, then 3 and 26,857,414.3333 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 | 80,572,243 | |
| -1 | -80,572,243 |
Let's try dividing by 4:
80,572,243 ÷ 4 = 20,143,060.75
If the quotient is a whole number, then 4 and 20,143,060.75 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 | 80,572,243 | |
| -1 | 80,572,243 |
If you did it right, you will end up with this table:
| 1 | 23 | 53 | 157 | 421 | 1,219 | 3,611 | 8,321 | 9,683 | 22,313 | 66,097 | 191,383 | 513,199 | 1,520,231 | 3,503,141 | 80,572,243 |
| -1 | -23 | -53 | -157 | -421 | -1,219 | -3,611 | -8,321 | -9,683 | -22,313 | -66,097 | -191,383 | -513,199 | -1,520,231 | -3,503,141 | -80,572,243 |
Here are some more numbers to try:
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