What is the Least Common Multiple of 53640 and 53648?

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 53640 and 53648 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 53640 and 53648, than apply into the LCM equation.

GCF(53640,53648) = 8
LCM(53640,53648) = ( 53640 × 53648) / 8
LCM(53640,53648) = 2877678720 / 8
LCM(53640,53648) = 359709840

Least Common Multiple (LCM) of 53640 and 53648 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 53640 and 53648. First we will calculate the prime factors of 53640 and 53648.

Prime Factorization of 53640

Prime Factorization of 53648

Now multiplying the highest exponent prime factors to calculate the LCM of 53640 and 53648.

LCM(53640,53648) = 2⁴ × 3² × 5¹ × 149¹ × 7¹ × 479¹
LCM(53640,53648) = 359709840