What is the Least Common Multiple of 37978 and 37990?

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 37978 and 37990 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 37978 and 37990, than apply into the LCM equation.

GCF(37978,37990) = 2
LCM(37978,37990) = ( 37978 × 37990) / 2
LCM(37978,37990) = 1442784220 / 2
LCM(37978,37990) = 721392110

Least Common Multiple (LCM) of 37978 and 37990 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 37978 and 37990. First we will calculate the prime factors of 37978 and 37990.

Prime Factorization of 37978

Prime Factorization of 37990

Now multiplying the highest exponent prime factors to calculate the LCM of 37978 and 37990.

LCM(37978,37990) = 2¹ × 17¹ × 1117¹ × 5¹ × 29¹ × 131¹
LCM(37978,37990) = 721392110