What is the Least Common Multiple of 61707 and 61721?

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 61707 and 61721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61707 and 61721, than apply into the LCM equation.

GCF(61707,61721) = 1
LCM(61707,61721) = ( 61707 × 61721) / 1
LCM(61707,61721) = 3808617747 / 1
LCM(61707,61721) = 3808617747

Least Common Multiple (LCM) of 61707 and 61721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61707 and 61721. First we will calculate the prime factors of 61707 and 61721.

Prime Factorization of 61707

Prime Factorization of 61721

Now multiplying the highest exponent prime factors to calculate the LCM of 61707 and 61721.

LCM(61707,61721) = 3¹ × 67¹ × 307¹ × 11¹ × 31¹ × 181¹
LCM(61707,61721) = 3808617747