What is the Least Common Multiple of 68646 and 68655?

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 68646 and 68655 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68646 and 68655, than apply into the LCM equation.

GCF(68646,68655) = 3
LCM(68646,68655) = ( 68646 × 68655) / 3
LCM(68646,68655) = 4712891130 / 3
LCM(68646,68655) = 1570963710

Least Common Multiple (LCM) of 68646 and 68655 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68646 and 68655. First we will calculate the prime factors of 68646 and 68655.

Prime Factorization of 68646

Prime Factorization of 68655

Now multiplying the highest exponent prime factors to calculate the LCM of 68646 and 68655.

LCM(68646,68655) = 2¹ × 3¹ × 17¹ × 673¹ × 5¹ × 23¹ × 199¹
LCM(68646,68655) = 1570963710