What is the Least Common Multiple of 69440 and 69458?

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 69440 and 69458 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69440 and 69458, than apply into the LCM equation.

GCF(69440,69458) = 2
LCM(69440,69458) = ( 69440 × 69458) / 2
LCM(69440,69458) = 4823163520 / 2
LCM(69440,69458) = 2411581760

Least Common Multiple (LCM) of 69440 and 69458 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69440 and 69458. First we will calculate the prime factors of 69440 and 69458.

Prime Factorization of 69440

Prime Factorization of 69458

Now multiplying the highest exponent prime factors to calculate the LCM of 69440 and 69458.

LCM(69440,69458) = 2⁶ × 5¹ × 7¹ × 31¹ × 34729¹
LCM(69440,69458) = 2411581760