What is the Least Common Multiple of 39454 and 39470?

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 39454 and 39470 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39454 and 39470, than apply into the LCM equation.

GCF(39454,39470) = 2
LCM(39454,39470) = ( 39454 × 39470) / 2
LCM(39454,39470) = 1557249380 / 2
LCM(39454,39470) = 778624690

Least Common Multiple (LCM) of 39454 and 39470 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39454 and 39470. First we will calculate the prime factors of 39454 and 39470.

Prime Factorization of 39454

Prime Factorization of 39470

Now multiplying the highest exponent prime factors to calculate the LCM of 39454 and 39470.

LCM(39454,39470) = 2¹ × 19727¹ × 5¹ × 3947¹
LCM(39454,39470) = 778624690