What is the Least Common Multiple of 51240 and 51247?

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 51240 and 51247 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51240 and 51247, than apply into the LCM equation.

GCF(51240,51247) = 7
LCM(51240,51247) = ( 51240 × 51247) / 7
LCM(51240,51247) = 2625896280 / 7
LCM(51240,51247) = 375128040

Least Common Multiple (LCM) of 51240 and 51247 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51240 and 51247. First we will calculate the prime factors of 51240 and 51247.

Prime Factorization of 51240

Prime Factorization of 51247

Now multiplying the highest exponent prime factors to calculate the LCM of 51240 and 51247.

LCM(51240,51247) = 2³ × 3¹ × 5¹ × 7¹ × 61¹ × 7321¹
LCM(51240,51247) = 375128040