What is the Least Common Multiple of 30705 and 30715?

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 30705 and 30715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30705 and 30715, than apply into the LCM equation.

GCF(30705,30715) = 5
LCM(30705,30715) = ( 30705 × 30715) / 5
LCM(30705,30715) = 943104075 / 5
LCM(30705,30715) = 188620815

Least Common Multiple (LCM) of 30705 and 30715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30705 and 30715. First we will calculate the prime factors of 30705 and 30715.

Prime Factorization of 30705

Prime Factorization of 30715

Now multiplying the highest exponent prime factors to calculate the LCM of 30705 and 30715.

LCM(30705,30715) = 3¹ × 5¹ × 23¹ × 89¹ × 6143¹
LCM(30705,30715) = 188620815