A:
Positive:
1 x 7002086311 x 636553361 x 1147883241 x 290543433 x 161711671 x 1043532651 x 264134763 x 14701
Negative:
-1 x -70020863-11 x -6365533-61 x -1147883-241 x -290543-433 x -161711-671 x -104353-2651 x -26413-4763 x -14701
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 70,020,863, 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 | 70,020,863 | |
| -1 | -70,020,863 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,020,863.
Example:
1 x 70,020,863 = 70,020,863
and
-1 x -70,020,863 = 70,020,863
Notice both answers equal 70,020,863
With that explanation out of the way, let's continue. Next, we take the number 70,020,863 and divide it by 2:
70,020,863 ÷ 2 = 35,010,431.5
If the quotient is a whole number, then 2 and 35,010,431.5 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 | 70,020,863 | |
| -1 | -70,020,863 |
Now, we try dividing 70,020,863 by 3:
70,020,863 ÷ 3 = 23,340,287.6667
If the quotient is a whole number, then 3 and 23,340,287.6667 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 | 70,020,863 | |
| -1 | -70,020,863 |
Let's try dividing by 4:
70,020,863 ÷ 4 = 17,505,215.75
If the quotient is a whole number, then 4 and 17,505,215.75 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 | 70,020,863 | |
| -1 | 70,020,863 |
If you did it right, you will end up with this table:
| 1 | 11 | 61 | 241 | 433 | 671 | 2,651 | 4,763 | 14,701 | 26,413 | 104,353 | 161,711 | 290,543 | 1,147,883 | 6,365,533 | 70,020,863 |
| -1 | -11 | -61 | -241 | -433 | -671 | -2,651 | -4,763 | -14,701 | -26,413 | -104,353 | -161,711 | -290,543 | -1,147,883 | -6,365,533 | -70,020,863 |
Here are some more numbers to try:
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