What is the Least Common Multiple of 5460 and 5480?

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 5460 and 5480 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5460 and 5480, than apply into the LCM equation.

GCF(5460,5480) = 20
LCM(5460,5480) = ( 5460 × 5480) / 20
LCM(5460,5480) = 29920800 / 20
LCM(5460,5480) = 1496040

Least Common Multiple (LCM) of 5460 and 5480 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5460 and 5480. First we will calculate the prime factors of 5460 and 5480.

Prime Factorization of 5460

Prime Factorization of 5480

Now multiplying the highest exponent prime factors to calculate the LCM of 5460 and 5480.

LCM(5460,5480) = 2³ × 3¹ × 5¹ × 7¹ × 13¹ × 137¹
LCM(5460,5480) = 1496040