Q: What are the factor combinations of the number 371?
A:
Positive:
1 x 3717 x 53
Negative:
-1 x -371-7 x -53
A:
Positive:
1 x 3717 x 53
Negative:
-1 x -371-7 x -53
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 371, 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 | 371 | |
| -1 | -371 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 371.
Example:
1 x 371 = 371
and
-1 x -371 = 371
Notice both answers equal 371
With that explanation out of the way, let's continue. Next, we take the number 371 and divide it by 2:
371 ÷ 2 = 185.5
If the quotient is a whole number, then 2 and 185.5 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 | 371 | |
| -1 | -371 |
Now, we try dividing 371 by 3:
371 ÷ 3 = 123.6667
If the quotient is a whole number, then 3 and 123.6667 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 | 371 | |
| -1 | -371 |
Let's try dividing by 4:
371 ÷ 4 = 92.75
If the quotient is a whole number, then 4 and 92.75 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 | 371 | |
| -1 | 371 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 371 |
| -1 | -7 | -53 | -371 |
Here are some more numbers to try:
Try the factor calculator