A:
Positive:
1 x 7023673131 x 226570141 x 171309173 x 962147757 x 927831271 x 552612263 x 310372993 x 23467
Negative:
-1 x -70236731-31 x -2265701-41 x -1713091-73 x -962147-757 x -92783-1271 x -55261-2263 x -31037-2993 x -23467
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 70,236,731, 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 | 70,236,731 | |
| -1 | -70,236,731 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,236,731.
Example:
1 x 70,236,731 = 70,236,731
and
-1 x -70,236,731 = 70,236,731
Notice both answers equal 70,236,731
With that explanation out of the way, let's continue. Next, we take the number 70,236,731 and divide it by 2:
70,236,731 ÷ 2 = 35,118,365.5
If the quotient is a whole number, then 2 and 35,118,365.5 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 | 70,236,731 | |
| -1 | -70,236,731 |
Now, we try dividing 70,236,731 by 3:
70,236,731 ÷ 3 = 23,412,243.6667
If the quotient is a whole number, then 3 and 23,412,243.6667 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 | 70,236,731 | |
| -1 | -70,236,731 |
Let's try dividing by 4:
70,236,731 ÷ 4 = 17,559,182.75
If the quotient is a whole number, then 4 and 17,559,182.75 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 | 70,236,731 | |
| -1 | 70,236,731 |
If you did it right, you will end up with this table:
| 1 | 31 | 41 | 73 | 757 | 1,271 | 2,263 | 2,993 | 23,467 | 31,037 | 55,261 | 92,783 | 962,147 | 1,713,091 | 2,265,701 | 70,236,731 |
| -1 | -31 | -41 | -73 | -757 | -1,271 | -2,263 | -2,993 | -23,467 | -31,037 | -55,261 | -92,783 | -962,147 | -1,713,091 | -2,265,701 | -70,236,731 |
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