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The least common factor is a term often mistakenly given to either the greatest common factor (GCF) or the least common multiple (LCM). This term is not often used because it does not describe a useful relationship between numbers. Since 1 evenly divides all integers, 1 is technically the least common factor for any set of integers.
4 and 5 are relatively prime, which means that they share no factors aside from 1.
The least common factor of any set of positive integers is 1.
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What is the least common factor of 5 and 8?
The least common factor of 5 and 8 is 1. The least common factor of any set of integers is 1.
What is the least common factor of 2 and 5?
The least common factor of any set of positive integers is 1.
What is the least common factor of 5 10 and 20?
The factors of 5 are 1 and 5. The factors of 10 are 1, 2, 5, and 10. The factors of 20 are 1, 2, 4, 5, 10, and 20. The common factors are 1 and 5. Therefore, the least (smallest) common factor is 1.
What is the least common factor of 20 and 50?
The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 50 are 1, 2, 5, 10, 25, and 50. The common factors of 20 and 50 are 1, 2, 5, and 10. Therefore, the least common factor (the smallest common factor) is 1.
What is the least common factor of 3 5 9 and 8?
The least common factor of any set of positive integers is 1.
