What is the Least Common Multiple of 64420 and 64430?

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 64420 and 64430 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64420 and 64430, than apply into the LCM equation.

GCF(64420,64430) = 10
LCM(64420,64430) = ( 64420 × 64430) / 10
LCM(64420,64430) = 4150580600 / 10
LCM(64420,64430) = 415058060

Least Common Multiple (LCM) of 64420 and 64430 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64420 and 64430. First we will calculate the prime factors of 64420 and 64430.

Prime Factorization of 64420

Prime Factorization of 64430

Now multiplying the highest exponent prime factors to calculate the LCM of 64420 and 64430.

LCM(64420,64430) = 2² × 5¹ × 3221¹ × 17¹ × 379¹
LCM(64420,64430) = 415058060