What is the Least Common Multiple of 73680 and 73690?

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 73680 and 73690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73680 and 73690, than apply into the LCM equation.

GCF(73680,73690) = 10
LCM(73680,73690) = ( 73680 × 73690) / 10
LCM(73680,73690) = 5429479200 / 10
LCM(73680,73690) = 542947920

Least Common Multiple (LCM) of 73680 and 73690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73680 and 73690. First we will calculate the prime factors of 73680 and 73690.

Prime Factorization of 73680

Prime Factorization of 73690

Now multiplying the highest exponent prime factors to calculate the LCM of 73680 and 73690.

LCM(73680,73690) = 2⁴ × 3¹ × 5¹ × 307¹ × 7369¹
LCM(73680,73690) = 542947920