What is the Least Common Multiple of 43280 and 43290?

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 43280 and 43290 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43280 and 43290, than apply into the LCM equation.

GCF(43280,43290) = 10
LCM(43280,43290) = ( 43280 × 43290) / 10
LCM(43280,43290) = 1873591200 / 10
LCM(43280,43290) = 187359120

Least Common Multiple (LCM) of 43280 and 43290 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43280 and 43290. First we will calculate the prime factors of 43280 and 43290.

Prime Factorization of 43280

Prime Factorization of 43290

Now multiplying the highest exponent prime factors to calculate the LCM of 43280 and 43290.

LCM(43280,43290) = 2⁴ × 5¹ × 541¹ × 3² × 13¹ × 37¹
LCM(43280,43290) = 187359120