What is the Least Common Multiple of 60400 and 60420?

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 60400 and 60420 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 60400 and 60420, than apply into the LCM equation.

GCF(60400,60420) = 20
LCM(60400,60420) = ( 60400 × 60420) / 20
LCM(60400,60420) = 3649368000 / 20
LCM(60400,60420) = 182468400

Least Common Multiple (LCM) of 60400 and 60420 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 60400 and 60420. First we will calculate the prime factors of 60400 and 60420.

Prime Factorization of 60400

Prime Factorization of 60420

Now multiplying the highest exponent prime factors to calculate the LCM of 60400 and 60420.

LCM(60400,60420) = 2⁴ × 5² × 151¹ × 3¹ × 19¹ × 53¹
LCM(60400,60420) = 182468400