What is the Least Common Multiple of 155 and 163?

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 155 and 163 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 155 and 163, than apply into the LCM equation.

GCF(155,163) = 1
LCM(155,163) = ( 155 × 163) / 1
LCM(155,163) = 25265 / 1
LCM(155,163) = 25265

Least Common Multiple (LCM) of 155 and 163 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 155 and 163. First we will calculate the prime factors of 155 and 163.

Prime Factorization of 155

Prime Factorization of 163

Now multiplying the highest exponent prime factors to calculate the LCM of 155 and 163.

LCM(155,163) = 5¹ × 31¹ × 163¹
LCM(155,163) = 25265