What is the Least Common Multiple of 70215 and 70221?

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 70215 and 70221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70215 and 70221, than apply into the LCM equation.

GCF(70215,70221) = 3
LCM(70215,70221) = ( 70215 × 70221) / 3
LCM(70215,70221) = 4930567515 / 3
LCM(70215,70221) = 1643522505

Least Common Multiple (LCM) of 70215 and 70221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70215 and 70221. First we will calculate the prime factors of 70215 and 70221.

Prime Factorization of 70215

Prime Factorization of 70221

Now multiplying the highest exponent prime factors to calculate the LCM of 70215 and 70221.

LCM(70215,70221) = 3¹ × 5¹ × 31¹ × 151¹ × 89¹ × 263¹
LCM(70215,70221) = 1643522505