What is the Least Common Multiple of 68945 and 68961?

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 68945 and 68961 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68945 and 68961, than apply into the LCM equation.

GCF(68945,68961) = 1
LCM(68945,68961) = ( 68945 × 68961) / 1
LCM(68945,68961) = 4754516145 / 1
LCM(68945,68961) = 4754516145

Least Common Multiple (LCM) of 68945 and 68961 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68945 and 68961. First we will calculate the prime factors of 68945 and 68961.

Prime Factorization of 68945

Prime Factorization of 68961

Now multiplying the highest exponent prime factors to calculate the LCM of 68945 and 68961.

LCM(68945,68961) = 5¹ × 13789¹ × 3¹ × 127¹ × 181¹
LCM(68945,68961) = 4754516145