What is the Least Common Multiple of 64720 and 64731?

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 64720 and 64731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64720 and 64731, than apply into the LCM equation.

GCF(64720,64731) = 1
LCM(64720,64731) = ( 64720 × 64731) / 1
LCM(64720,64731) = 4189390320 / 1
LCM(64720,64731) = 4189390320

Least Common Multiple (LCM) of 64720 and 64731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64720 and 64731. First we will calculate the prime factors of 64720 and 64731.

Prime Factorization of 64720

Prime Factorization of 64731

Now multiplying the highest exponent prime factors to calculate the LCM of 64720 and 64731.

LCM(64720,64731) = 2⁴ × 5¹ × 809¹ × 3¹ × 21577¹
LCM(64720,64731) = 4189390320