What is the Least Common Multiple of 77316 and 77320?

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 77316 and 77320 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77316 and 77320, than apply into the LCM equation.

GCF(77316,77320) = 4
LCM(77316,77320) = ( 77316 × 77320) / 4
LCM(77316,77320) = 5978073120 / 4
LCM(77316,77320) = 1494518280

Least Common Multiple (LCM) of 77316 and 77320 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77316 and 77320. First we will calculate the prime factors of 77316 and 77320.

Prime Factorization of 77316

Prime Factorization of 77320

Now multiplying the highest exponent prime factors to calculate the LCM of 77316 and 77320.

LCM(77316,77320) = 2³ × 3¹ × 17¹ × 379¹ × 5¹ × 1933¹
LCM(77316,77320) = 1494518280