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What is the Least Common Multiple of 208 and 225?

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 (LCM) of 208 and 225 is 46800.

LCM(208,225) = 46800

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Least Common Multiple of 208 and 225 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 208 and 225, than apply into the LCM equation.

GCF(208,225) = 1
LCM(208,225) = ( 208 × 225) / 1
LCM(208,225) = 46800 / 1
LCM(208,225) = 46800

Least Common Multiple (LCM) of 208 and 225 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 208 and 225. First we will calculate the prime factors of 208 and 225.

Prime Factorization of 208

Prime factors of 208 are 2, 13. Prime factorization of 208 in exponential form is:

208 = 24 × 131

Prime Factorization of 225

Prime factors of 225 are 3, 5. Prime factorization of 225 in exponential form is:

225 = 32 × 52

Now multiplying the highest exponent prime factors to calculate the LCM of 208 and 225.

LCM(208,225) = 24 × 131 × 32 × 52
LCM(208,225) = 46800