Least Common Multiple of 15, 60, 42, 51

Least common multiple or lowest common denominator (lcd) can be calculated in three ways

• Least Common Multiple of 15, 60, 42, 51 by common division method
• Least Common Multiple of 15, 60, 42, 51 with GCF Formula

∴ So the LCM of the given numbers is 2 x 3 x 5 x 1 x 2 x 7 x 17 = 7140

The formula of LCM is LCM(a₁,a₂,a₃....,a_n) = ( a₁ × a₂ × a₃ × .... × a_n) / GCF(a₁,a₂,a₃....,a_n) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 15,60,42,51 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(15,60,42,51) = 3

common factors(in case of two or more numbers have common factors) = 90

GCF(15,60,42,51) x common factors =3 x 90 = 270

LCM(15,60,42,51) = ( 15 × 60 × 42 × 51 ) / 270

LCM(15,60,42,51) = 1927800 / 270

LCM(15,60,42,51) = 7140

∴ Least Common Multiple of 15,60,42,51 is 7140

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 68, 29, 31, 86
• LCM of 74, 21, 56, 14
• LCM of 21, 27, 57, 36
• LCM of 30, 59, 40, 75
• LCM of 52, 89, 10, 10

1. What is the LCM of 15, 60, 42, 51?

Answer: LCM of 15, 60, 42, 51 is 7140.

2. What are the Factors of 7140?

Answer: Factors of 7140 are . There are integers that are factors of 7140

3. How to Find the LCM of 15, 60, 42, 51 ?

Least Common Multiple of 15, 60, 42, 51.

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors with last row quotient of common division that is LCM(15, 60, 42, 51) = 2 x 2 x 3 x 5 x 7 x 17 = 7140.