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What is the Least Common Multiple of 16401 and 16408?

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 16401 and 16408 is 38443944.

LCM(16401,16408) = 38443944

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Least Common Multiple of 16401 and 16408 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16401 and 16408, than apply into the LCM equation.

GCF(16401,16408) = 7
LCM(16401,16408) = ( 16401 × 16408) / 7
LCM(16401,16408) = 269107608 / 7
LCM(16401,16408) = 38443944

Least Common Multiple (LCM) of 16401 and 16408 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16401 and 16408. First we will calculate the prime factors of 16401 and 16408.

Prime Factorization of 16401

Prime factors of 16401 are 3, 7, 11, 71. Prime factorization of 16401 in exponential form is:

16401 = 31 × 71 × 111 × 711

Prime Factorization of 16408

Prime factors of 16408 are 2, 7, 293. Prime factorization of 16408 in exponential form is:

16408 = 23 × 71 × 2931

Now multiplying the highest exponent prime factors to calculate the LCM of 16401 and 16408.

LCM(16401,16408) = 31 × 71 × 111 × 711 × 23 × 2931
LCM(16401,16408) = 38443944