They are: 4 and 24 respectively
1 is, because 19 is prime
The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 16 are 1, 2, 4, 8, and 16. The common factors of 12 and 16 are 1, 2, and 4. Therefore, the least common factor (the smallest common factor) is 1.
The factors of 3 are 1 and 3. The factors of 8 are 1, 2, 4, and 8. The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 15 are 1, 3, 5, and 15. The only common factor is 1. Therefore, the least (smallest) common factor is 1.
The least common factor of 5 and 8 is 1. The least common factor of any set of integers is 1.
The least common multiple is 24. The greatest common factor is 4.
The GCF of 8 and 12 is 4, and the least common multiple is 24
The least common factor of any set of positive integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of positive integers is 1.
The least common factor of any set of integers is 1.
It is one
The least common factor of any set of numbers is 1.
The least common factor of any set of positive integers is 1.