What is the Least Common Multiple of 42045 and 42061?

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 42045 and 42061 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42045 and 42061, than apply into the LCM equation.

GCF(42045,42061) = 1
LCM(42045,42061) = ( 42045 × 42061) / 1
LCM(42045,42061) = 1768454745 / 1
LCM(42045,42061) = 1768454745

Least Common Multiple (LCM) of 42045 and 42061 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42045 and 42061. First we will calculate the prime factors of 42045 and 42061.

Prime Factorization of 42045

Prime Factorization of 42061

Now multiplying the highest exponent prime factors to calculate the LCM of 42045 and 42061.

LCM(42045,42061) = 3¹ × 5¹ × 2803¹ × 42061¹
LCM(42045,42061) = 1768454745