What is the Least Common Multiple of 15520 and 15534?

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 15520 and 15534 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15520 and 15534, than apply into the LCM equation.

GCF(15520,15534) = 2
LCM(15520,15534) = ( 15520 × 15534) / 2
LCM(15520,15534) = 241087680 / 2
LCM(15520,15534) = 120543840

Least Common Multiple (LCM) of 15520 and 15534 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15520 and 15534. First we will calculate the prime factors of 15520 and 15534.

Prime Factorization of 15520

Prime Factorization of 15534

Now multiplying the highest exponent prime factors to calculate the LCM of 15520 and 15534.

LCM(15520,15534) = 2⁵ × 5¹ × 97¹ × 3² × 863¹
LCM(15520,15534) = 120543840