What is the Least Common Multiple of 27940 and 27946?

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 27940 and 27946 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27940 and 27946, than apply into the LCM equation.

GCF(27940,27946) = 2
LCM(27940,27946) = ( 27940 × 27946) / 2
LCM(27940,27946) = 780811240 / 2
LCM(27940,27946) = 390405620

Least Common Multiple (LCM) of 27940 and 27946 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27940 and 27946. First we will calculate the prime factors of 27940 and 27946.

Prime Factorization of 27940

Prime Factorization of 27946

Now multiplying the highest exponent prime factors to calculate the LCM of 27940 and 27946.

LCM(27940,27946) = 2² × 5¹ × 11¹ × 127¹ × 89¹ × 157¹
LCM(27940,27946) = 390405620