What is the Least Common Multiple of 42195 and 42206?

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 42195 and 42206 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42195 and 42206, than apply into the LCM equation.

GCF(42195,42206) = 1
LCM(42195,42206) = ( 42195 × 42206) / 1
LCM(42195,42206) = 1780882170 / 1
LCM(42195,42206) = 1780882170

Least Common Multiple (LCM) of 42195 and 42206 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42195 and 42206. First we will calculate the prime factors of 42195 and 42206.

Prime Factorization of 42195

Prime Factorization of 42206

Now multiplying the highest exponent prime factors to calculate the LCM of 42195 and 42206.

LCM(42195,42206) = 3¹ × 5¹ × 29¹ × 97¹ × 2¹ × 47¹ × 449¹
LCM(42195,42206) = 1780882170