What is the Least Common Multiple of 20770 and 20776?

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 20770 and 20776 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20770 and 20776, than apply into the LCM equation.

GCF(20770,20776) = 2
LCM(20770,20776) = ( 20770 × 20776) / 2
LCM(20770,20776) = 431517520 / 2
LCM(20770,20776) = 215758760

Least Common Multiple (LCM) of 20770 and 20776 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20770 and 20776. First we will calculate the prime factors of 20770 and 20776.

Prime Factorization of 20770

Prime Factorization of 20776

Now multiplying the highest exponent prime factors to calculate the LCM of 20770 and 20776.

LCM(20770,20776) = 2³ × 5¹ × 31¹ × 67¹ × 7² × 53¹
LCM(20770,20776) = 215758760