What is the Least Common Multiple of 61890 and 61907?

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 61890 and 61907 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61890 and 61907, than apply into the LCM equation.

GCF(61890,61907) = 1
LCM(61890,61907) = ( 61890 × 61907) / 1
LCM(61890,61907) = 3831424230 / 1
LCM(61890,61907) = 3831424230

Least Common Multiple (LCM) of 61890 and 61907 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61890 and 61907. First we will calculate the prime factors of 61890 and 61907.

Prime Factorization of 61890

Prime Factorization of 61907

Now multiplying the highest exponent prime factors to calculate the LCM of 61890 and 61907.

LCM(61890,61907) = 2¹ × 3¹ × 5¹ × 2063¹ × 31¹ × 1997¹
LCM(61890,61907) = 3831424230