What is the Least Common Multiple of 30778 and 30790?

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 30778 and 30790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30778 and 30790, than apply into the LCM equation.

GCF(30778,30790) = 2
LCM(30778,30790) = ( 30778 × 30790) / 2
LCM(30778,30790) = 947654620 / 2
LCM(30778,30790) = 473827310

Least Common Multiple (LCM) of 30778 and 30790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30778 and 30790. First we will calculate the prime factors of 30778 and 30790.

Prime Factorization of 30778

Prime Factorization of 30790

Now multiplying the highest exponent prime factors to calculate the LCM of 30778 and 30790.

LCM(30778,30790) = 2¹ × 11¹ × 1399¹ × 5¹ × 3079¹
LCM(30778,30790) = 473827310