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What is the least common factor of 18 and 21?
The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 21 are 1, 3, 7, and 21. The common factors are 1 and 3. Therefore, the least common factor (the smallest common factor) is 1. Factorizations: 18-3x3x2 21-7x3
What are the Common factors of 18 and 42?
The common factors of 18 and 42 are 1, 2, 3, and 6. The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The common factors of 18 and 42 are 1, 2, 3, and 6.
What are the common factors of 18 and 63?
The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 63 are: 1, 3, 7, 9, 21, 63The common factors are: 1, 3, 9
What are the common factors of 21 and 51?
The common factors of 21 and 51 are: 1 and 3
What are the common factors of 21 and 70?
The factors of 21 are 1,3,7, and 21. The factors of 70 are 1,2,5,7,14,35, and 70 The common factors of 21 and 70 are 1 and 7.
What is the least common factor of 18 and 21?
The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 21 are 1, 3, 7, and 21. The common factors are 1 and 3. Therefore, the least common factor (the smallest common factor) is 1. Factorizations: 18-3x3x2 21-7x3
What are the common factors of 18 and 21?
3
What is the least common multiple of 10 18 21 by using by using prime factors?
The Least Common Multiple of 10, 18, 21 is 630.
What are the greatest common factors of 21 and 18?
The Greatest Common Factor (GCF) is: 3
What is the greatest common factor of 9and18 and 21?
The greatest common factor is 3: Factors of 9: 1, 3, 9 Factors of 18: 1, 2, 3, 6, 9, 18 Factors of 21: 1, 3, 7, 21 The two common factors are 1 and 3 and the greatest of these two is 3.
What is the highest common factor of 18 and 21?
Factors of 18 are 3,3,& 2. Factors of 21 are 3 & 7 One lot of '3' is common to both so '3' is the HCF.
What is the least common factor of 18 21 and 36?
The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 21 are 1, 3, 7, and 21. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors they have in common are 1 and 3. So, the least (or lowest) common factor is 1. Note: The least common factor of two or more positive integers will always be 1.
What are the Common factors of 18 and 42?
The common factors of 18 and 42 are 1, 2, 3, and 6. The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The common factors of 18 and 42 are 1, 2, 3, and 6.
What are the common factors of 18 and 63?
The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 63 are: 1, 3, 7, 9, 21, 63The common factors are: 1, 3, 9
What are the factors and prime factors of 18 and 21?
The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
What is the common factor of 21and 36?
The factors of 21 are: 1, 3, 7, 21.The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36.The common factors are: 1, 3
What are the common factors of 21 and 51?
The common factors of 21 and 51 are: 1 and 3
