What is the Least Common Multiple of 19398 and 19402?

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 19398 and 19402 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19398 and 19402, than apply into the LCM equation.

GCF(19398,19402) = 2
LCM(19398,19402) = ( 19398 × 19402) / 2
LCM(19398,19402) = 376359996 / 2
LCM(19398,19402) = 188179998

Least Common Multiple (LCM) of 19398 and 19402 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19398 and 19402. First we will calculate the prime factors of 19398 and 19402.

Prime Factorization of 19398

Prime Factorization of 19402

Now multiplying the highest exponent prime factors to calculate the LCM of 19398 and 19402.

LCM(19398,19402) = 2¹ × 3¹ × 53¹ × 61¹ × 89¹ × 109¹
LCM(19398,19402) = 188179998