What is the Least Common Multiple of 10220 and 10228?

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 10220 and 10228 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10220 and 10228, than apply into the LCM equation.

GCF(10220,10228) = 4
LCM(10220,10228) = ( 10220 × 10228) / 4
LCM(10220,10228) = 104530160 / 4
LCM(10220,10228) = 26132540

Least Common Multiple (LCM) of 10220 and 10228 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 10220 and 10228. First we will calculate the prime factors of 10220 and 10228.

Prime Factorization of 10220

Prime Factorization of 10228

Now multiplying the highest exponent prime factors to calculate the LCM of 10220 and 10228.

LCM(10220,10228) = 2² × 5¹ × 7¹ × 73¹ × 2557¹
LCM(10220,10228) = 26132540