What is the Least Common Multiple of 20761 and 20769?

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 20761 and 20769 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20761 and 20769, than apply into the LCM equation.

GCF(20761,20769) = 1
LCM(20761,20769) = ( 20761 × 20769) / 1
LCM(20761,20769) = 431185209 / 1
LCM(20761,20769) = 431185209

Least Common Multiple (LCM) of 20761 and 20769 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20761 and 20769. First we will calculate the prime factors of 20761 and 20769.

Prime Factorization of 20761

Prime Factorization of 20769

Now multiplying the highest exponent prime factors to calculate the LCM of 20761 and 20769.

LCM(20761,20769) = 13¹ × 1597¹ × 3¹ × 7¹ × 23¹ × 43¹
LCM(20761,20769) = 431185209