What is the Least Common Multiple of 77785 and 77800?

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 77785 and 77800 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77785 and 77800, than apply into the LCM equation.

GCF(77785,77800) = 5
LCM(77785,77800) = ( 77785 × 77800) / 5
LCM(77785,77800) = 6051673000 / 5
LCM(77785,77800) = 1210334600

Least Common Multiple (LCM) of 77785 and 77800 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77785 and 77800. First we will calculate the prime factors of 77785 and 77800.

Prime Factorization of 77785

Prime Factorization of 77800

Now multiplying the highest exponent prime factors to calculate the LCM of 77785 and 77800.

LCM(77785,77800) = 5² × 47¹ × 331¹ × 2³ × 389¹
LCM(77785,77800) = 1210334600