What is the Least Common Multiple of 1212 and 1216?

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 1212 and 1216 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1212 and 1216, than apply into the LCM equation.

GCF(1212,1216) = 4
LCM(1212,1216) = ( 1212 × 1216) / 4
LCM(1212,1216) = 1473792 / 4
LCM(1212,1216) = 368448

Least Common Multiple (LCM) of 1212 and 1216 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1212 and 1216. First we will calculate the prime factors of 1212 and 1216.

Prime Factorization of 1212

Prime Factorization of 1216

Now multiplying the highest exponent prime factors to calculate the LCM of 1212 and 1216.

LCM(1212,1216) = 2⁶ × 3¹ × 101¹ × 19¹
LCM(1212,1216) = 368448