What is the Least Common Multiple of 19642 and 19661?

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 19642 and 19661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19642 and 19661, than apply into the LCM equation.

GCF(19642,19661) = 1
LCM(19642,19661) = ( 19642 × 19661) / 1
LCM(19642,19661) = 386181362 / 1
LCM(19642,19661) = 386181362

Least Common Multiple (LCM) of 19642 and 19661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19642 and 19661. First we will calculate the prime factors of 19642 and 19661.

Prime Factorization of 19642

Prime Factorization of 19661

Now multiplying the highest exponent prime factors to calculate the LCM of 19642 and 19661.

LCM(19642,19661) = 2¹ × 7¹ × 23¹ × 61¹ × 19661¹
LCM(19642,19661) = 386181362