What is the Least Common Multiple of 61781 and 61790?

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 61781 and 61790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61781 and 61790, than apply into the LCM equation.

GCF(61781,61790) = 1
LCM(61781,61790) = ( 61781 × 61790) / 1
LCM(61781,61790) = 3817447990 / 1
LCM(61781,61790) = 3817447990

Least Common Multiple (LCM) of 61781 and 61790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61781 and 61790. First we will calculate the prime factors of 61781 and 61790.

Prime Factorization of 61781

Prime Factorization of 61790

Now multiplying the highest exponent prime factors to calculate the LCM of 61781 and 61790.

LCM(61781,61790) = 61781¹ × 2¹ × 5¹ × 37¹ × 167¹
LCM(61781,61790) = 3817447990