What is the Least Common Multiple of 4945 and 4955?

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 4945 and 4955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4945 and 4955, than apply into the LCM equation.

GCF(4945,4955) = 5
LCM(4945,4955) = ( 4945 × 4955) / 5
LCM(4945,4955) = 24502475 / 5
LCM(4945,4955) = 4900495

Least Common Multiple (LCM) of 4945 and 4955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4945 and 4955. First we will calculate the prime factors of 4945 and 4955.

Prime Factorization of 4945

Prime Factorization of 4955

Now multiplying the highest exponent prime factors to calculate the LCM of 4945 and 4955.

LCM(4945,4955) = 5¹ × 23¹ × 43¹ × 991¹
LCM(4945,4955) = 4900495