What is the Least Common Multiple of 64945 and 64965?

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 64945 and 64965 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64945 and 64965, than apply into the LCM equation.

GCF(64945,64965) = 5
LCM(64945,64965) = ( 64945 × 64965) / 5
LCM(64945,64965) = 4219151925 / 5
LCM(64945,64965) = 843830385

Least Common Multiple (LCM) of 64945 and 64965 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64945 and 64965. First we will calculate the prime factors of 64945 and 64965.

Prime Factorization of 64945

Prime Factorization of 64965

Now multiplying the highest exponent prime factors to calculate the LCM of 64945 and 64965.

LCM(64945,64965) = 5¹ × 31¹ × 419¹ × 3¹ × 61¹ × 71¹
LCM(64945,64965) = 843830385