A:
Positive:
1 x 3772060317 x 221885989 x 423827107 x 352529233 x 1618911513 x 249311819 x 207373961 x 9523
Negative:
-1 x -37720603-17 x -2218859-89 x -423827-107 x -352529-233 x -161891-1513 x -24931-1819 x -20737-3961 x -9523
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 37,720,603, 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 | 37,720,603 | |
| -1 | -37,720,603 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 37,720,603.
Example:
1 x 37,720,603 = 37,720,603
and
-1 x -37,720,603 = 37,720,603
Notice both answers equal 37,720,603
With that explanation out of the way, let's continue. Next, we take the number 37,720,603 and divide it by 2:
37,720,603 ÷ 2 = 18,860,301.5
If the quotient is a whole number, then 2 and 18,860,301.5 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 | 37,720,603 | |
| -1 | -37,720,603 |
Now, we try dividing 37,720,603 by 3:
37,720,603 ÷ 3 = 12,573,534.3333
If the quotient is a whole number, then 3 and 12,573,534.3333 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 | 37,720,603 | |
| -1 | -37,720,603 |
Let's try dividing by 4:
37,720,603 ÷ 4 = 9,430,150.75
If the quotient is a whole number, then 4 and 9,430,150.75 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 | 37,720,603 | |
| -1 | 37,720,603 |
If you did it right, you will end up with this table:
| 1 | 17 | 89 | 107 | 233 | 1,513 | 1,819 | 3,961 | 9,523 | 20,737 | 24,931 | 161,891 | 352,529 | 423,827 | 2,218,859 | 37,720,603 |
| -1 | -17 | -89 | -107 | -233 | -1,513 | -1,819 | -3,961 | -9,523 | -20,737 | -24,931 | -161,891 | -352,529 | -423,827 | -2,218,859 | -37,720,603 |
Here are some more numbers to try:
Try the factor calculator