What is the Least Common Multiple of 91940 and 91960?

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 91940 and 91960 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91940 and 91960, than apply into the LCM equation.

GCF(91940,91960) = 20
LCM(91940,91960) = ( 91940 × 91960) / 20
LCM(91940,91960) = 8454802400 / 20
LCM(91940,91960) = 422740120

Least Common Multiple (LCM) of 91940 and 91960 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91940 and 91960. First we will calculate the prime factors of 91940 and 91960.

Prime Factorization of 91940

Prime Factorization of 91960

Now multiplying the highest exponent prime factors to calculate the LCM of 91940 and 91960.

LCM(91940,91960) = 2³ × 5¹ × 4597¹ × 11² × 19¹
LCM(91940,91960) = 422740120