What is the Least Common Multiple of 67972 and 67976?

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 67972 and 67976 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67972 and 67976, than apply into the LCM equation.

GCF(67972,67976) = 4
LCM(67972,67976) = ( 67972 × 67976) / 4
LCM(67972,67976) = 4620464672 / 4
LCM(67972,67976) = 1155116168

Least Common Multiple (LCM) of 67972 and 67976 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67972 and 67976. First we will calculate the prime factors of 67972 and 67976.

Prime Factorization of 67972

Prime Factorization of 67976

Now multiplying the highest exponent prime factors to calculate the LCM of 67972 and 67976.

LCM(67972,67976) = 2³ × 16993¹ × 29¹ × 293¹
LCM(67972,67976) = 1155116168