What is the Least Common Multiple of 20495 and 20507?

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 20495 and 20507 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20495 and 20507, than apply into the LCM equation.

GCF(20495,20507) = 1
LCM(20495,20507) = ( 20495 × 20507) / 1
LCM(20495,20507) = 420290965 / 1
LCM(20495,20507) = 420290965

Least Common Multiple (LCM) of 20495 and 20507 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20495 and 20507. First we will calculate the prime factors of 20495 and 20507.

Prime Factorization of 20495

Prime Factorization of 20507

Now multiplying the highest exponent prime factors to calculate the LCM of 20495 and 20507.

LCM(20495,20507) = 5¹ × 4099¹ × 20507¹
LCM(20495,20507) = 420290965