What is the Least Common Multiple of 79781 and 79794?

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 79781 and 79794 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79781 and 79794, than apply into the LCM equation.

GCF(79781,79794) = 13
LCM(79781,79794) = ( 79781 × 79794) / 13
LCM(79781,79794) = 6366045114 / 13
LCM(79781,79794) = 489695778

Least Common Multiple (LCM) of 79781 and 79794 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79781 and 79794. First we will calculate the prime factors of 79781 and 79794.

Prime Factorization of 79781

Prime Factorization of 79794

Now multiplying the highest exponent prime factors to calculate the LCM of 79781 and 79794.

LCM(79781,79794) = 13¹ × 17¹ × 19² × 2¹ × 3² × 11¹ × 31¹
LCM(79781,79794) = 489695778