What is the Least Common Multiple of 85424 and 85436?

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 85424 and 85436 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85424 and 85436, than apply into the LCM equation.

GCF(85424,85436) = 4
LCM(85424,85436) = ( 85424 × 85436) / 4
LCM(85424,85436) = 7298284864 / 4
LCM(85424,85436) = 1824571216

Least Common Multiple (LCM) of 85424 and 85436 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85424 and 85436. First we will calculate the prime factors of 85424 and 85436.

Prime Factorization of 85424

Prime Factorization of 85436

Now multiplying the highest exponent prime factors to calculate the LCM of 85424 and 85436.

LCM(85424,85436) = 2⁴ × 19¹ × 281¹ × 13¹ × 31¹ × 53¹
LCM(85424,85436) = 1824571216