What is the Least Common Multiple of 61658 and 61668?

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 61658 and 61668 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61658 and 61668, than apply into the LCM equation.

GCF(61658,61668) = 2
LCM(61658,61668) = ( 61658 × 61668) / 2
LCM(61658,61668) = 3802325544 / 2
LCM(61658,61668) = 1901162772

Least Common Multiple (LCM) of 61658 and 61668 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61658 and 61668. First we will calculate the prime factors of 61658 and 61668.

Prime Factorization of 61658

Prime Factorization of 61668

Now multiplying the highest exponent prime factors to calculate the LCM of 61658 and 61668.

LCM(61658,61668) = 2² × 30829¹ × 3³ × 571¹
LCM(61658,61668) = 1901162772