What is the Least Common Multiple of 78285 and 78305?

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 78285 and 78305 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78285 and 78305, than apply into the LCM equation.

GCF(78285,78305) = 5
LCM(78285,78305) = ( 78285 × 78305) / 5
LCM(78285,78305) = 6130106925 / 5
LCM(78285,78305) = 1226021385

Least Common Multiple (LCM) of 78285 and 78305 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78285 and 78305. First we will calculate the prime factors of 78285 and 78305.

Prime Factorization of 78285

Prime Factorization of 78305

Now multiplying the highest exponent prime factors to calculate the LCM of 78285 and 78305.

LCM(78285,78305) = 3¹ × 5¹ × 17¹ × 307¹ × 15661¹
LCM(78285,78305) = 1226021385