What is the Least Common Multiple of 56854 and 56870?

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 56854 and 56870 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56854 and 56870, than apply into the LCM equation.

GCF(56854,56870) = 2
LCM(56854,56870) = ( 56854 × 56870) / 2
LCM(56854,56870) = 3233286980 / 2
LCM(56854,56870) = 1616643490

Least Common Multiple (LCM) of 56854 and 56870 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56854 and 56870. First we will calculate the prime factors of 56854 and 56870.

Prime Factorization of 56854

Prime Factorization of 56870

Now multiplying the highest exponent prime factors to calculate the LCM of 56854 and 56870.

LCM(56854,56870) = 2¹ × 7¹ × 31¹ × 131¹ × 5¹ × 11² × 47¹
LCM(56854,56870) = 1616643490