What is the Least Common Multiple of 6940 and 6945?

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 6940 and 6945 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6940 and 6945, than apply into the LCM equation.

GCF(6940,6945) = 5
LCM(6940,6945) = ( 6940 × 6945) / 5
LCM(6940,6945) = 48198300 / 5
LCM(6940,6945) = 9639660

Least Common Multiple (LCM) of 6940 and 6945 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6940 and 6945. First we will calculate the prime factors of 6940 and 6945.

Prime Factorization of 6940

Prime Factorization of 6945

Now multiplying the highest exponent prime factors to calculate the LCM of 6940 and 6945.

LCM(6940,6945) = 2² × 5¹ × 347¹ × 3¹ × 463¹
LCM(6940,6945) = 9639660