What is the Least Common Multiple of 56686 and 56690?

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 56686 and 56690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56686 and 56690, than apply into the LCM equation.

GCF(56686,56690) = 2
LCM(56686,56690) = ( 56686 × 56690) / 2
LCM(56686,56690) = 3213529340 / 2
LCM(56686,56690) = 1606764670

Least Common Multiple (LCM) of 56686 and 56690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56686 and 56690. First we will calculate the prime factors of 56686 and 56690.

Prime Factorization of 56686

Prime Factorization of 56690

Now multiplying the highest exponent prime factors to calculate the LCM of 56686 and 56690.

LCM(56686,56690) = 2¹ × 7¹ × 4049¹ × 5¹ × 5669¹
LCM(56686,56690) = 1606764670