What is the Least Common Multiple of 61640 and 61644?

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 61640 and 61644 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61640 and 61644, than apply into the LCM equation.

GCF(61640,61644) = 4
LCM(61640,61644) = ( 61640 × 61644) / 4
LCM(61640,61644) = 3799736160 / 4
LCM(61640,61644) = 949934040

Least Common Multiple (LCM) of 61640 and 61644 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61640 and 61644. First we will calculate the prime factors of 61640 and 61644.

Prime Factorization of 61640

Prime Factorization of 61644

Now multiplying the highest exponent prime factors to calculate the LCM of 61640 and 61644.

LCM(61640,61644) = 2³ × 5¹ × 23¹ × 67¹ × 3¹ × 11¹ × 467¹
LCM(61640,61644) = 949934040