What is the Least Common Multiple of 7642 and 7656?

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 7642 and 7656 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7642 and 7656, than apply into the LCM equation.

GCF(7642,7656) = 2
LCM(7642,7656) = ( 7642 × 7656) / 2
LCM(7642,7656) = 58507152 / 2
LCM(7642,7656) = 29253576

Least Common Multiple (LCM) of 7642 and 7656 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7642 and 7656. First we will calculate the prime factors of 7642 and 7656.

Prime Factorization of 7642

Prime Factorization of 7656

Now multiplying the highest exponent prime factors to calculate the LCM of 7642 and 7656.

LCM(7642,7656) = 2³ × 3821¹ × 3¹ × 11¹ × 29¹
LCM(7642,7656) = 29253576