What is the Least Common Multiple of 27815 and 27821?

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 27815 and 27821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27815 and 27821, than apply into the LCM equation.

GCF(27815,27821) = 1
LCM(27815,27821) = ( 27815 × 27821) / 1
LCM(27815,27821) = 773841115 / 1
LCM(27815,27821) = 773841115

Least Common Multiple (LCM) of 27815 and 27821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27815 and 27821. First we will calculate the prime factors of 27815 and 27821.

Prime Factorization of 27815

Prime Factorization of 27821

Now multiplying the highest exponent prime factors to calculate the LCM of 27815 and 27821.

LCM(27815,27821) = 5¹ × 5563¹ × 43¹ × 647¹
LCM(27815,27821) = 773841115