What is the Least Common Multiple of 18520 and 18536?

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 18520 and 18536 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18520 and 18536, than apply into the LCM equation.

GCF(18520,18536) = 8
LCM(18520,18536) = ( 18520 × 18536) / 8
LCM(18520,18536) = 343286720 / 8
LCM(18520,18536) = 42910840

Least Common Multiple (LCM) of 18520 and 18536 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18520 and 18536. First we will calculate the prime factors of 18520 and 18536.

Prime Factorization of 18520

Prime Factorization of 18536

Now multiplying the highest exponent prime factors to calculate the LCM of 18520 and 18536.

LCM(18520,18536) = 2³ × 5¹ × 463¹ × 7¹ × 331¹
LCM(18520,18536) = 42910840