Least Common Multiple of 643, 661

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

• Least Common Multiple of 643, 661 by common division method
• Least Common Multiple of 643, 661 with GCF Formula

Given numbers has no common factors except 1. So, there LCM is their product i.e 425023

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 643,661 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(643,661) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(643,661) x common factors =1 x 1 = 1

LCM(643,661) = ( 643 × 661 ) / 1

LCM(643,661) = 425023 / 1

LCM(643,661) = 425023

∴ Least Common Multiple of 643,661 is 425023

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

• LCM of 930, 769
• LCM of 836, 744
• LCM of 769, 390
• LCM of 569, 866
• LCM of 348, 623

1. What is the LCM of 643, 661?

Answer: LCM of 643, 661 is 425023.

2. What are the Factors of 425023?

Answer: Factors of 425023 are . There are integers that are factors of 425023

3. How to Find the LCM of 643, 661 ?

Least Common Multiple of 643, 661.

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(643, 661) = 643 x 661 = 425023.