42
LCM of 21 and 42 is the smallest number among all common multiples of 21 and 42. The first few multiples of 21 and 42 are (21, 42, 63, 84, 105, 126, . . . ) and (42, 84, 126, 168, . . . ) respectively….LCM of 21 and 42.
| 1. | LCM of 21 and 42 |
|---|---|
| 2. | List of Methods |
| 3. | Solved Examples |
| 4. | FAQs |
What is the LCM of 7 and 14 and 21?
Answer: LCM of 7, 14, and 21 is 42.
What is the least common multiple of 14 and 20?
140
Answer: LCM of 14 and 20 is 140.
What is the least common multiple of 21 and 3?
21
Answer: LCM of 3 and 21 is 21.
What is the lowest common multiple of 6 and 21?
Answer: LCM of 6 and 21 is 42.
What’s the greatest common factor of 14 and 21?
Answer: GCF of 14 and 21 is 7.
What is the least common multiple of 14 21 and 28?
The LCM of 28,14,21 28 , 14 , 21 is 2⋅2⋅3⋅7=84 2 ⋅ 2 ⋅ 3 ⋅ 7 = 84 .
What is the lowest common multiple of 14 and 22?
154
Answer: LCM of 14 and 22 is 154.
How do you find the LCM of 14?
The LCM of 14 and 28 is 28. To find the least common multiple of 14 and 28, we need to find the multiples of 14 and 28 (multiples of 14 = 14, 28, 42, 56; multiples of 28 = 28, 56, 84, 112) and choose the smallest multiple that is exactly divisible by 14 and 28, i.e., 28.
What is the LCM of 21 and 6?
What’s the LCM of 3 15 and 21?
Calculate the LCM The least common multiple of 3, 15 and 21 is 105.
What is the least common multiple of 14 and 6?
Answer: LCM of 6 and 14 is 42.
What is the greatest common factor of 14 and 21?
Greatest Common Factor. We found the factors and prime factorization of 14 and 21. The biggest common factor number is the GCF number. So the greatest common factor 14 and 21 is 7.
What are the common factors of 14 and 21?
The gcf of 14 and 21 can be obtained like this: The factors of 14 are 14, 7, 2, 1. The factors of 21 are 21, 7, 3, 1. The common factors of 14 and 21 are 7, 1, intersecting the two sets above. In the intersection factors of 14 ∩ factors of 21 the greatest element is 7.
What are the prime factors of 14 and 21?
Alternatively, the lcm of 14 and 21 can be found using the prime factorization of 14 and 21: The prime factorization of 14 is: 2 x 7. The prime factorization of 21 is: 3 x 7. Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(14,14) = 42.
How do you calculate least common multiple?
One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.
