What is the Least Common Multiple of 72820 and 72836?

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 72820 and 72836 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72820 and 72836, than apply into the LCM equation.

GCF(72820,72836) = 4
LCM(72820,72836) = ( 72820 × 72836) / 4
LCM(72820,72836) = 5303917520 / 4
LCM(72820,72836) = 1325979380

Least Common Multiple (LCM) of 72820 and 72836 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72820 and 72836. First we will calculate the prime factors of 72820 and 72836.

Prime Factorization of 72820

Prime Factorization of 72836

Now multiplying the highest exponent prime factors to calculate the LCM of 72820 and 72836.

LCM(72820,72836) = 2² × 5¹ × 11¹ × 331¹ × 131¹ × 139¹
LCM(72820,72836) = 1325979380