What is the Least Common Multiple of 7661 and 7678?

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 7661 and 7678 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7661 and 7678, than apply into the LCM equation.

GCF(7661,7678) = 1
LCM(7661,7678) = ( 7661 × 7678) / 1
LCM(7661,7678) = 58821158 / 1
LCM(7661,7678) = 58821158

Least Common Multiple (LCM) of 7661 and 7678 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7661 and 7678. First we will calculate the prime factors of 7661 and 7678.

Prime Factorization of 7661

Prime Factorization of 7678

Now multiplying the highest exponent prime factors to calculate the LCM of 7661 and 7678.

LCM(7661,7678) = 47¹ × 163¹ × 2¹ × 11¹ × 349¹
LCM(7661,7678) = 58821158