What is the Least Common Multiple of 77421 and 77427?

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 77421 and 77427 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77421 and 77427, than apply into the LCM equation.

GCF(77421,77427) = 3
LCM(77421,77427) = ( 77421 × 77427) / 3
LCM(77421,77427) = 5994475767 / 3
LCM(77421,77427) = 1998158589

Least Common Multiple (LCM) of 77421 and 77427 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77421 and 77427. First we will calculate the prime factors of 77421 and 77427.

Prime Factorization of 77421

Prime Factorization of 77427

Now multiplying the highest exponent prime factors to calculate the LCM of 77421 and 77427.

LCM(77421,77427) = 3² × 131¹ × 197¹ × 7¹ × 1229¹
LCM(77421,77427) = 1998158589