What is the Least Common Multiple of 79280 and 79292?

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 79280 and 79292 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79280 and 79292, than apply into the LCM equation.

GCF(79280,79292) = 4
LCM(79280,79292) = ( 79280 × 79292) / 4
LCM(79280,79292) = 6286269760 / 4
LCM(79280,79292) = 1571567440

Least Common Multiple (LCM) of 79280 and 79292 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79280 and 79292. First we will calculate the prime factors of 79280 and 79292.

Prime Factorization of 79280

Prime Factorization of 79292

Now multiplying the highest exponent prime factors to calculate the LCM of 79280 and 79292.

LCM(79280,79292) = 2⁴ × 5¹ × 991¹ × 43¹ × 461¹
LCM(79280,79292) = 1571567440