What is the Least Common Multiple of 42280 and 42295?

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 42280 and 42295 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42280 and 42295, than apply into the LCM equation.

GCF(42280,42295) = 5
LCM(42280,42295) = ( 42280 × 42295) / 5
LCM(42280,42295) = 1788232600 / 5
LCM(42280,42295) = 357646520

Least Common Multiple (LCM) of 42280 and 42295 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42280 and 42295. First we will calculate the prime factors of 42280 and 42295.

Prime Factorization of 42280

Prime Factorization of 42295

Now multiplying the highest exponent prime factors to calculate the LCM of 42280 and 42295.

LCM(42280,42295) = 2³ × 5¹ × 7¹ × 151¹ × 11¹ × 769¹
LCM(42280,42295) = 357646520