GCF and LCM Calculator Logo

What is the Least Common Multiple of 20764 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 (LCM) of 20764 and 20769 is 431247516.

LCM(20764,20769) = 431247516

LCM Calculator and
and

Least Common Multiple of 20764 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 20764 and 20769, than apply into the LCM equation.

GCF(20764,20769) = 1
LCM(20764,20769) = ( 20764 × 20769) / 1
LCM(20764,20769) = 431247516 / 1
LCM(20764,20769) = 431247516

Least Common Multiple (LCM) of 20764 and 20769 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20764 and 20769. First we will calculate the prime factors of 20764 and 20769.

Prime Factorization of 20764

Prime factors of 20764 are 2, 29, 179. Prime factorization of 20764 in exponential form is:

20764 = 22 × 291 × 1791

Prime Factorization of 20769

Prime factors of 20769 are 3, 7, 23, 43. Prime factorization of 20769 in exponential form is:

20769 = 31 × 71 × 231 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 20764 and 20769.

LCM(20764,20769) = 22 × 291 × 1791 × 31 × 71 × 231 × 431
LCM(20764,20769) = 431247516