What is the Least Common Multiple of 77209 and 77221?

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 77209 and 77221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77209 and 77221, than apply into the LCM equation.

GCF(77209,77221) = 1
LCM(77209,77221) = ( 77209 × 77221) / 1
LCM(77209,77221) = 5962156189 / 1
LCM(77209,77221) = 5962156189

Least Common Multiple (LCM) of 77209 and 77221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77209 and 77221. First we will calculate the prime factors of 77209 and 77221.

Prime Factorization of 77209

Prime Factorization of 77221

Now multiplying the highest exponent prime factors to calculate the LCM of 77209 and 77221.

LCM(77209,77221) = 11¹ × 7019¹ × 31¹ × 47¹ × 53¹
LCM(77209,77221) = 5962156189