What is the Least Common Multiple of 70400 and 70406?

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 70400 and 70406 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70400 and 70406, than apply into the LCM equation.

GCF(70400,70406) = 2
LCM(70400,70406) = ( 70400 × 70406) / 2
LCM(70400,70406) = 4956582400 / 2
LCM(70400,70406) = 2478291200

Least Common Multiple (LCM) of 70400 and 70406 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70400 and 70406. First we will calculate the prime factors of 70400 and 70406.

Prime Factorization of 70400

Prime Factorization of 70406

Now multiplying the highest exponent prime factors to calculate the LCM of 70400 and 70406.

LCM(70400,70406) = 2⁸ × 5² × 11¹ × 7¹ × 47¹ × 107¹
LCM(70400,70406) = 2478291200