What is the Least Common Multiple of 72945 and 72956?

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 72945 and 72956 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72945 and 72956, than apply into the LCM equation.

GCF(72945,72956) = 1
LCM(72945,72956) = ( 72945 × 72956) / 1
LCM(72945,72956) = 5321775420 / 1
LCM(72945,72956) = 5321775420

Least Common Multiple (LCM) of 72945 and 72956 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72945 and 72956. First we will calculate the prime factors of 72945 and 72956.

Prime Factorization of 72945

Prime Factorization of 72956

Now multiplying the highest exponent prime factors to calculate the LCM of 72945 and 72956.

LCM(72945,72956) = 3² × 5¹ × 1621¹ × 2² × 13¹ × 23¹ × 61¹
LCM(72945,72956) = 5321775420