What is the Least Common Multiple of 42880 and 42884?

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 42880 and 42884 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42880 and 42884, than apply into the LCM equation.

GCF(42880,42884) = 4
LCM(42880,42884) = ( 42880 × 42884) / 4
LCM(42880,42884) = 1838865920 / 4
LCM(42880,42884) = 459716480

Least Common Multiple (LCM) of 42880 and 42884 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42880 and 42884. First we will calculate the prime factors of 42880 and 42884.

Prime Factorization of 42880

Prime Factorization of 42884

Now multiplying the highest exponent prime factors to calculate the LCM of 42880 and 42884.

LCM(42880,42884) = 2⁷ × 5¹ × 67¹ × 71¹ × 151¹
LCM(42880,42884) = 459716480