What is the Least Common Multiple of 62420 and 62440?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 62420 and 62440 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 62420 and 62440, than apply into the LCM equation.

GCF(62420,62440) = 20
LCM(62420,62440) = ( 62420 × 62440) / 20
LCM(62420,62440) = 3897504800 / 20
LCM(62420,62440) = 194875240

Least Common Multiple (LCM) of 62420 and 62440 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 62420 and 62440. First we will calculate the prime factors of 62420 and 62440.

Prime Factorization of 62420

Prime Factorization of 62440

Now multiplying the highest exponent prime factors to calculate the LCM of 62420 and 62440.

LCM(62420,62440) = 2³ × 5¹ × 3121¹ × 7¹ × 223¹
LCM(62420,62440) = 194875240