What is the Least Common Multiple of 19738 and 19758?

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 19738 and 19758 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19738 and 19758, than apply into the LCM equation.

GCF(19738,19758) = 2
LCM(19738,19758) = ( 19738 × 19758) / 2
LCM(19738,19758) = 389983404 / 2
LCM(19738,19758) = 194991702

Least Common Multiple (LCM) of 19738 and 19758 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19738 and 19758. First we will calculate the prime factors of 19738 and 19758.

Prime Factorization of 19738

Prime Factorization of 19758

Now multiplying the highest exponent prime factors to calculate the LCM of 19738 and 19758.

LCM(19738,19758) = 2¹ × 71¹ × 139¹ × 3¹ × 37¹ × 89¹
LCM(19738,19758) = 194991702