What is the Least Common Multiple of 38990 and 38998?

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 38990 and 38998 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38990 and 38998, than apply into the LCM equation.

GCF(38990,38998) = 2
LCM(38990,38998) = ( 38990 × 38998) / 2
LCM(38990,38998) = 1520532020 / 2
LCM(38990,38998) = 760266010

Least Common Multiple (LCM) of 38990 and 38998 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38990 and 38998. First we will calculate the prime factors of 38990 and 38998.

Prime Factorization of 38990

Prime Factorization of 38998

Now multiplying the highest exponent prime factors to calculate the LCM of 38990 and 38998.

LCM(38990,38998) = 2¹ × 5¹ × 7¹ × 557¹ × 17¹ × 31¹ × 37¹
LCM(38990,38998) = 760266010