What is the Least Common Multiple of 19691 and 19708?

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 19691 and 19708 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19691 and 19708, than apply into the LCM equation.

GCF(19691,19708) = 1
LCM(19691,19708) = ( 19691 × 19708) / 1
LCM(19691,19708) = 388070228 / 1
LCM(19691,19708) = 388070228

Least Common Multiple (LCM) of 19691 and 19708 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19691 and 19708. First we will calculate the prime factors of 19691 and 19708.

Prime Factorization of 19691

Prime Factorization of 19708

Now multiplying the highest exponent prime factors to calculate the LCM of 19691 and 19708.

LCM(19691,19708) = 7¹ × 29¹ × 97¹ × 2² × 13¹ × 379¹
LCM(19691,19708) = 388070228