What is the Least Common Multiple of 16972 and 16978?

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 16972 and 16978 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16972 and 16978, than apply into the LCM equation.

GCF(16972,16978) = 2
LCM(16972,16978) = ( 16972 × 16978) / 2
LCM(16972,16978) = 288150616 / 2
LCM(16972,16978) = 144075308

Least Common Multiple (LCM) of 16972 and 16978 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16972 and 16978. First we will calculate the prime factors of 16972 and 16978.

Prime Factorization of 16972

Prime Factorization of 16978

Now multiplying the highest exponent prime factors to calculate the LCM of 16972 and 16978.

LCM(16972,16978) = 2² × 4243¹ × 13¹ × 653¹
LCM(16972,16978) = 144075308