What is the Least Common Multiple of 19742 and 19757?

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 19742 and 19757 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19742 and 19757, than apply into the LCM equation.

GCF(19742,19757) = 1
LCM(19742,19757) = ( 19742 × 19757) / 1
LCM(19742,19757) = 390042694 / 1
LCM(19742,19757) = 390042694

Least Common Multiple (LCM) of 19742 and 19757 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19742 and 19757. First we will calculate the prime factors of 19742 and 19757.

Prime Factorization of 19742

Prime Factorization of 19757

Now multiplying the highest exponent prime factors to calculate the LCM of 19742 and 19757.

LCM(19742,19757) = 2¹ × 9871¹ × 23¹ × 859¹
LCM(19742,19757) = 390042694