A:
Positive:
1 x 716200037 x 1023142913 x 550923191 x 787033169 x 4237871183 x 605412197 x 325994657 x 15379
Negative:
-1 x -71620003-7 x -10231429-13 x -5509231-91 x -787033-169 x -423787-1183 x -60541-2197 x -32599-4657 x -15379
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 71,620,003, 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 | 71,620,003 | |
| -1 | -71,620,003 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,620,003.
Example:
1 x 71,620,003 = 71,620,003
and
-1 x -71,620,003 = 71,620,003
Notice both answers equal 71,620,003
With that explanation out of the way, let's continue. Next, we take the number 71,620,003 and divide it by 2:
71,620,003 ÷ 2 = 35,810,001.5
If the quotient is a whole number, then 2 and 35,810,001.5 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 | 71,620,003 | |
| -1 | -71,620,003 |
Now, we try dividing 71,620,003 by 3:
71,620,003 ÷ 3 = 23,873,334.3333
If the quotient is a whole number, then 3 and 23,873,334.3333 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 | 71,620,003 | |
| -1 | -71,620,003 |
Let's try dividing by 4:
71,620,003 ÷ 4 = 17,905,000.75
If the quotient is a whole number, then 4 and 17,905,000.75 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 | 71,620,003 | |
| -1 | 71,620,003 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 169 | 1,183 | 2,197 | 4,657 | 15,379 | 32,599 | 60,541 | 423,787 | 787,033 | 5,509,231 | 10,231,429 | 71,620,003 |
| -1 | -7 | -13 | -91 | -169 | -1,183 | -2,197 | -4,657 | -15,379 | -32,599 | -60,541 | -423,787 | -787,033 | -5,509,231 | -10,231,429 | -71,620,003 |
Here are some more numbers to try:
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