What is the Least Common Multiple of 47220 and 47228?

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 47220 and 47228 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47220 and 47228, than apply into the LCM equation.

GCF(47220,47228) = 4
LCM(47220,47228) = ( 47220 × 47228) / 4
LCM(47220,47228) = 2230106160 / 4
LCM(47220,47228) = 557526540

Least Common Multiple (LCM) of 47220 and 47228 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47220 and 47228. First we will calculate the prime factors of 47220 and 47228.

Prime Factorization of 47220

Prime Factorization of 47228

Now multiplying the highest exponent prime factors to calculate the LCM of 47220 and 47228.

LCM(47220,47228) = 2² × 3¹ × 5¹ × 787¹ × 11807¹
LCM(47220,47228) = 557526540