What is the Least Common Multiple of 27770 and 27781?

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 27770 and 27781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27770 and 27781, than apply into the LCM equation.

GCF(27770,27781) = 1
LCM(27770,27781) = ( 27770 × 27781) / 1
LCM(27770,27781) = 771478370 / 1
LCM(27770,27781) = 771478370

Least Common Multiple (LCM) of 27770 and 27781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27770 and 27781. First we will calculate the prime factors of 27770 and 27781.

Prime Factorization of 27770

Prime Factorization of 27781

Now multiplying the highest exponent prime factors to calculate the LCM of 27770 and 27781.

LCM(27770,27781) = 2¹ × 5¹ × 2777¹ × 13¹ × 2137¹
LCM(27770,27781) = 771478370