What is the Least Common Multiple of 89390 and 89408?

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 89390 and 89408 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89390 and 89408, than apply into the LCM equation.

GCF(89390,89408) = 2
LCM(89390,89408) = ( 89390 × 89408) / 2
LCM(89390,89408) = 7992181120 / 2
LCM(89390,89408) = 3996090560

Least Common Multiple (LCM) of 89390 and 89408 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89390 and 89408. First we will calculate the prime factors of 89390 and 89408.

Prime Factorization of 89390

Prime Factorization of 89408

Now multiplying the highest exponent prime factors to calculate the LCM of 89390 and 89408.

LCM(89390,89408) = 2⁶ × 5¹ × 7¹ × 1277¹ × 11¹ × 127¹
LCM(89390,89408) = 3996090560