What is the Least Common Multiple of 42289 and 42307?

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 42289 and 42307 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42289 and 42307, than apply into the LCM equation.

GCF(42289,42307) = 1
LCM(42289,42307) = ( 42289 × 42307) / 1
LCM(42289,42307) = 1789120723 / 1
LCM(42289,42307) = 1789120723

Least Common Multiple (LCM) of 42289 and 42307 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42289 and 42307. First we will calculate the prime factors of 42289 and 42307.

Prime Factorization of 42289

Prime Factorization of 42307

Now multiplying the highest exponent prime factors to calculate the LCM of 42289 and 42307.

LCM(42289,42307) = 13¹ × 3253¹ × 42307¹
LCM(42289,42307) = 1789120723