What is the Least Common Multiple of 1518 and 1522?

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 1518 and 1522 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1518 and 1522, than apply into the LCM equation.

GCF(1518,1522) = 2
LCM(1518,1522) = ( 1518 × 1522) / 2
LCM(1518,1522) = 2310396 / 2
LCM(1518,1522) = 1155198

Least Common Multiple (LCM) of 1518 and 1522 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1518 and 1522. First we will calculate the prime factors of 1518 and 1522.

Prime Factorization of 1518

Prime Factorization of 1522

Now multiplying the highest exponent prime factors to calculate the LCM of 1518 and 1522.

LCM(1518,1522) = 2¹ × 3¹ × 11¹ × 23¹ × 761¹
LCM(1518,1522) = 1155198