What is the Least Common Multiple of 199 and 213?

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 199 and 213 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 199 and 213, than apply into the LCM equation.

GCF(199,213) = 1
LCM(199,213) = ( 199 × 213) / 1
LCM(199,213) = 42387 / 1
LCM(199,213) = 42387

Least Common Multiple (LCM) of 199 and 213 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 199 and 213. First we will calculate the prime factors of 199 and 213.

Prime Factorization of 199

Prime Factorization of 213

Now multiplying the highest exponent prime factors to calculate the LCM of 199 and 213.

LCM(199,213) = 199¹ × 3¹ × 71¹
LCM(199,213) = 42387