What is the Least Common Multiple of 71621 and 71631?

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 71621 and 71631 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71621 and 71631, than apply into the LCM equation.

GCF(71621,71631) = 1
LCM(71621,71631) = ( 71621 × 71631) / 1
LCM(71621,71631) = 5130283851 / 1
LCM(71621,71631) = 5130283851

Least Common Multiple (LCM) of 71621 and 71631 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71621 and 71631. First we will calculate the prime factors of 71621 and 71631.

Prime Factorization of 71621

Prime Factorization of 71631

Now multiplying the highest exponent prime factors to calculate the LCM of 71621 and 71631.

LCM(71621,71631) = 11¹ × 17¹ × 383¹ × 3³ × 7¹ × 379¹
LCM(71621,71631) = 5130283851