What is the Least Common Multiple of 83990 and 83998?

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 83990 and 83998 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83990 and 83998, than apply into the LCM equation.

GCF(83990,83998) = 2
LCM(83990,83998) = ( 83990 × 83998) / 2
LCM(83990,83998) = 7054992020 / 2
LCM(83990,83998) = 3527496010

Least Common Multiple (LCM) of 83990 and 83998 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83990 and 83998. First we will calculate the prime factors of 83990 and 83998.

Prime Factorization of 83990

Prime Factorization of 83998

Now multiplying the highest exponent prime factors to calculate the LCM of 83990 and 83998.

LCM(83990,83998) = 2¹ × 5¹ × 37¹ × 227¹ × 41999¹
LCM(83990,83998) = 3527496010