What is the Least Common Multiple of 76785 and 76791?

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 76785 and 76791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76785 and 76791, than apply into the LCM equation.

GCF(76785,76791) = 3
LCM(76785,76791) = ( 76785 × 76791) / 3
LCM(76785,76791) = 5896396935 / 3
LCM(76785,76791) = 1965465645

Least Common Multiple (LCM) of 76785 and 76791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76785 and 76791. First we will calculate the prime factors of 76785 and 76791.

Prime Factorization of 76785

Prime Factorization of 76791

Now multiplying the highest exponent prime factors to calculate the LCM of 76785 and 76791.

LCM(76785,76791) = 3¹ × 5¹ × 5119¹ × 11¹ × 13¹ × 179¹
LCM(76785,76791) = 1965465645