What is the Least Common Multiple of 77960 and 77972?

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 77960 and 77972 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77960 and 77972, than apply into the LCM equation.

GCF(77960,77972) = 4
LCM(77960,77972) = ( 77960 × 77972) / 4
LCM(77960,77972) = 6078697120 / 4
LCM(77960,77972) = 1519674280

Least Common Multiple (LCM) of 77960 and 77972 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77960 and 77972. First we will calculate the prime factors of 77960 and 77972.

Prime Factorization of 77960

Prime Factorization of 77972

Now multiplying the highest exponent prime factors to calculate the LCM of 77960 and 77972.

LCM(77960,77972) = 2³ × 5¹ × 1949¹ × 101¹ × 193¹
LCM(77960,77972) = 1519674280