###### Asked in Factoring and Multiples

Factoring and Multiples

# What is the greatest common factor of 30 25?

## Answer

###### Wiki User

###### August 03, 2015 3:15AM

The GCF is 5.

## Related Questions

###### Asked in Factoring and Multiples

### What is the greatest common factor of 25?

There is neither a greatest common factor nor common factors of
a single number, such as 25, because there cannot be any form of
common factor without two or more numbers to compare. Common
factors are factors that the numbers being compared have in common.
The greatest common factor is the largest factor that all the
numbers being compared have in common. Thus, since there are not
two or more numbers to compare, there are neither common factors
nor a greatest common factor.
The factors of 25 are 1, 5, and 25.
The prime factors of 25 are 5 and 5.
Examples:
The common factors of 13 and 25 are only 1; the greatest common
factor is 1.
The common factors of 23 and 25 are only 1; the greatest common
factor is 1.
The common factors of 25 and 30 are 1 and 5; the greatest common
factor is 5.
The common factors of 25 and 42 are only 1; the greatest common
factor is 1.
The common factors of 25 and 50 are 1, 5, and 25; the greatest
common factor is 25.

###### Asked in Factoring and Multiples

### What are the common factors and greatest common factor of 25?

There is neither a greatest common factor nor common factors of
a single number, such as 25, because there cannot be any form of
common factor without two or more numbers to compare. Common
factors are factors that the numbers being compared have in common.
The greatest common factor is the largest factor that all the
numbers being compared have in common. Thus, since there are not
two or more numbers to compare, there are neither common factors
nor a greatest common factor.
The factors of 25 are 1, 5, and 25.
Examples:
The common factors of 13 and 25 are only 1; the greatest common
factor is 1.
The common factors of 23 and 25 are only 1; the greatest common
factor is 1.
The common factors of 25 and 30 are 1 and 5; the greatest common
factor is 5.
The common factors of 25 and 42 are only 1; the greatest common
factor is 1.
The common factors of 25 and 50 are 1, 5, and 25; the greatest
common factor is 25.