Least Common Multiple of 68, 40, 420

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

• Least Common Multiple of 68, 40, 420 by common division method
• Least Common Multiple of 68, 40, 420 with GCF Formula

∴ So the LCM of the given numbers is 2 x 2 x 5 x 17 x 2 x 21 = 14280

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 68,40,420 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(68,40,420) = 4

common factors(in case of two or more numbers have common factors) = 20

GCF(68,40,420) x common factors =4 x 20 = 80

LCM(68,40,420) = ( 68 × 40 × 420 ) / 80

LCM(68,40,420) = 1142400 / 80

LCM(68,40,420) = 14280

∴ Least Common Multiple of 68,40,420 is 14280

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

• LCM of 35, 44, 798
• LCM of 16, 47, 239
• LCM of 10, 82, 850
• LCM of 79, 91, 552
• LCM of 68, 30, 866

1. What is the LCM of 68, 40, 420?

Answer: LCM of 68, 40, 420 is 14280.

2. What are the Factors of 14280?

Answer: Factors of 14280 are . There are integers that are factors of 14280

3. How to Find the LCM of 68, 40, 420 ?

Least Common Multiple of 68, 40, 420.

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(68, 40, 420) = 2 x 2 x 2 x 3 x 5 x 7 x 17 = 14280.