What is the Least Common Multiple of 69420 and 69424?

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 69420 and 69424 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69420 and 69424, than apply into the LCM equation.

GCF(69420,69424) = 4
LCM(69420,69424) = ( 69420 × 69424) / 4
LCM(69420,69424) = 4819414080 / 4
LCM(69420,69424) = 1204853520

Least Common Multiple (LCM) of 69420 and 69424 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69420 and 69424. First we will calculate the prime factors of 69420 and 69424.

Prime Factorization of 69420

Prime Factorization of 69424

Now multiplying the highest exponent prime factors to calculate the LCM of 69420 and 69424.

LCM(69420,69424) = 2⁴ × 3¹ × 5¹ × 13¹ × 89¹ × 4339¹
LCM(69420,69424) = 1204853520