What is the Least Common Multiple of 19540 and 19548?

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 19540 and 19548 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19540 and 19548, than apply into the LCM equation.

GCF(19540,19548) = 4
LCM(19540,19548) = ( 19540 × 19548) / 4
LCM(19540,19548) = 381967920 / 4
LCM(19540,19548) = 95491980

Least Common Multiple (LCM) of 19540 and 19548 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19540 and 19548. First we will calculate the prime factors of 19540 and 19548.

Prime Factorization of 19540

Prime Factorization of 19548

Now multiplying the highest exponent prime factors to calculate the LCM of 19540 and 19548.

LCM(19540,19548) = 2² × 5¹ × 977¹ × 3³ × 181¹
LCM(19540,19548) = 95491980