Least Common Multiple of 40, 56, 686

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

• Least Common Multiple of 40, 56, 686 by common division method
• Least Common Multiple of 40, 56, 686 with GCF Formula

∴ So the LCM of the given numbers is 2 x 2 x 2 x 7 x 5 x 1 x 49 = 13720

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 40,56,686 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(40,56,686) = 2

common factors(in case of two or more numbers have common factors) = 56

GCF(40,56,686) x common factors =2 x 56 = 112

LCM(40,56,686) = ( 40 × 56 × 686 ) / 112

LCM(40,56,686) = 1536640 / 112

LCM(40,56,686) = 13720

∴ Least Common Multiple of 40,56,686 is 13720

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

• LCM of 18, 69, 167
• LCM of 66, 12, 451
• LCM of 60, 15, 179
• LCM of 12, 66, 281
• LCM of 69, 91, 148

1. What is the LCM of 40, 56, 686?

Answer: LCM of 40, 56, 686 is 13720.

2. What are the Factors of 13720?

Answer: Factors of 13720 are . There are integers that are factors of 13720

3. How to Find the LCM of 40, 56, 686 ?

Least Common Multiple of 40, 56, 686.

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(40, 56, 686) = 2 x 2 x 2 x 5 x 7 x 7 x 7 = 13720.