What is the Least Common Multiple of 469 and 489?

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 469 and 489 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 469 and 489, than apply into the LCM equation.

GCF(469,489) = 1
LCM(469,489) = ( 469 × 489) / 1
LCM(469,489) = 229341 / 1
LCM(469,489) = 229341

Least Common Multiple (LCM) of 469 and 489 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 469 and 489. First we will calculate the prime factors of 469 and 489.

Prime Factorization of 469

Prime Factorization of 489

Now multiplying the highest exponent prime factors to calculate the LCM of 469 and 489.

LCM(469,489) = 7¹ × 67¹ × 3¹ × 163¹
LCM(469,489) = 229341