What is the Least Common Multiple of 15715 and 15722?

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 15715 and 15722 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15715 and 15722, than apply into the LCM equation.

GCF(15715,15722) = 7
LCM(15715,15722) = ( 15715 × 15722) / 7
LCM(15715,15722) = 247071230 / 7
LCM(15715,15722) = 35295890

Least Common Multiple (LCM) of 15715 and 15722 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15715 and 15722. First we will calculate the prime factors of 15715 and 15722.

Prime Factorization of 15715

Prime Factorization of 15722

Now multiplying the highest exponent prime factors to calculate the LCM of 15715 and 15722.

LCM(15715,15722) = 5¹ × 7¹ × 449¹ × 2¹ × 1123¹
LCM(15715,15722) = 35295890