What is the Least Common Multiple of 15661 and 15670?

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 15661 and 15670 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15661 and 15670, than apply into the LCM equation.

GCF(15661,15670) = 1
LCM(15661,15670) = ( 15661 × 15670) / 1
LCM(15661,15670) = 245407870 / 1
LCM(15661,15670) = 245407870

Least Common Multiple (LCM) of 15661 and 15670 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15661 and 15670. First we will calculate the prime factors of 15661 and 15670.

Prime Factorization of 15661

Prime Factorization of 15670

Now multiplying the highest exponent prime factors to calculate the LCM of 15661 and 15670.

LCM(15661,15670) = 15661¹ × 2¹ × 5¹ × 1567¹
LCM(15661,15670) = 245407870