What is the Least Common Multiple of 42208 and 42217?

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 42208 and 42217 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42208 and 42217, than apply into the LCM equation.

GCF(42208,42217) = 1
LCM(42208,42217) = ( 42208 × 42217) / 1
LCM(42208,42217) = 1781895136 / 1
LCM(42208,42217) = 1781895136

Least Common Multiple (LCM) of 42208 and 42217 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42208 and 42217. First we will calculate the prime factors of 42208 and 42217.

Prime Factorization of 42208

Prime Factorization of 42217

Now multiplying the highest exponent prime factors to calculate the LCM of 42208 and 42217.

LCM(42208,42217) = 2⁵ × 1319¹ × 7¹ × 37¹ × 163¹
LCM(42208,42217) = 1781895136