What is the Least Common Multiple of 7942 and 7961?

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 7942 and 7961 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7942 and 7961, than apply into the LCM equation.

GCF(7942,7961) = 19
LCM(7942,7961) = ( 7942 × 7961) / 19
LCM(7942,7961) = 63226262 / 19
LCM(7942,7961) = 3327698

Least Common Multiple (LCM) of 7942 and 7961 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7942 and 7961. First we will calculate the prime factors of 7942 and 7961.

Prime Factorization of 7942

Prime Factorization of 7961

Now multiplying the highest exponent prime factors to calculate the LCM of 7942 and 7961.

LCM(7942,7961) = 2¹ × 11¹ × 19² × 419¹
LCM(7942,7961) = 3327698