Find the LCM of
7 + 8 + 6
19 21 8
Answers
Answer:
Step-by-step explanation:
Explanation:
The Least Common Multiple is the smallest number which is exactly divisible by the given numbers. We can compute the LCM of 19 and 21 in many ways, the most commonly used methods are listed below.
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Methods to Find LCM of 19 and 21
The methods to compute the LCM of 19 and 21 are explained below.
By Common Division Method
By using the GCF
Method 1: LCM of 19 and 21 by Common Division Method
In this method, we divide 19 and 21 simultaneously with prime numbers and stop it when we don't have a prime number to divide both 19 and 21.
Method 2: LCM of 19 and 21 using GCF
The formula of LCM is LCM(X, Y) = (X × Y) / GCF(X, Y)
19 × 21 = 399
GCF(19, 21) = 1
Therefore, the LCM of 19 and 21 = LCM(19, 21) = (19 × 21)/GCF(19, 21) = 399/1 = 399
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Therefore, the LCM of 19 and 21 is 399.
☛ Also Check:
LCM of 3, 7 - LCM(3, 7) = 21
LCM of 7, 8 - LCM(7, 8) = 56
LCM of 6, 12 - LCM(6, 12) = 12
LCM of 6, 10 - LCM(6, 10) = 30
LCM of 3, 6 - LCM(3, 6) = 6
LCM of 18, 24 - LCM(18, 24) = 72
LCM of 6, 9, 15 - LCM(6, 9, 15) = 90
Answer:
Methods to Find LCM of 19 and 21
The methods to compute the LCM of 19 and 21 are explained below.
By Common Division Method
By using the GCF
Method 1: LCM of 19 and 21 by Common Division Method
In this method, we divide 19 and 21 simultaneously with prime numbers and stop it when we don't have a prime number to divide both 19 and 21.
LCM of 19 and 21 by Common Division Method
Method 2: LCM of 19 and 21 using GCF
The formula of LCM is LCM(X, Y) = (X × Y) / GCF(X, Y)
19 × 21 = 399
GCF(19, 21) = 1
Therefore, the LCM of 19 and 21 = LCM(19, 21) = (19 × 21)/GCF(19, 21) = 399/1 = 399
☛ GCD Calculator
Therefore, the LCM of 19 and 21 is 399.
☛ Also Check:
LCM of 3, 7 - LCM(3, 7) = 21
LCM of 7, 8 - LCM(7, 8) = 56
LCM of 6, 12 - LCM(6, 12) = 12
LCM of 6, 10 - LCM(6, 10) = 30
LCM of 3, 6 - LCM(3, 6) = 6
LCM of 18, 24 - LCM(18, 24) = 72
LCM of 6, 9, 15 - LCM(6, 9, 15) = 90