What is the Least Common Multiple of 19280 and 19289?

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 19280 and 19289 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19280 and 19289, than apply into the LCM equation.

GCF(19280,19289) = 1
LCM(19280,19289) = ( 19280 × 19289) / 1
LCM(19280,19289) = 371891920 / 1
LCM(19280,19289) = 371891920

Least Common Multiple (LCM) of 19280 and 19289 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19280 and 19289. First we will calculate the prime factors of 19280 and 19289.

Prime Factorization of 19280

Prime Factorization of 19289

Now multiplying the highest exponent prime factors to calculate the LCM of 19280 and 19289.

LCM(19280,19289) = 2⁴ × 5¹ × 241¹ × 19289¹
LCM(19280,19289) = 371891920