What is the Least Common Multiple of 41972 and 41980?

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 41972 and 41980 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 41972 and 41980, than apply into the LCM equation.

GCF(41972,41980) = 4
LCM(41972,41980) = ( 41972 × 41980) / 4
LCM(41972,41980) = 1761984560 / 4
LCM(41972,41980) = 440496140

Least Common Multiple (LCM) of 41972 and 41980 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 41972 and 41980. First we will calculate the prime factors of 41972 and 41980.

Prime Factorization of 41972

Prime Factorization of 41980

Now multiplying the highest exponent prime factors to calculate the LCM of 41972 and 41980.

LCM(41972,41980) = 2² × 7¹ × 1499¹ × 5¹ × 2099¹
LCM(41972,41980) = 440496140