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What is the Least Common Multiple of 78905 and 78924?

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 78905 and 78924 is 6227498220.

LCM(78905,78924) = 6227498220

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Least Common Multiple of 78905 and 78924 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78905 and 78924, than apply into the LCM equation.

GCF(78905,78924) = 1
LCM(78905,78924) = ( 78905 × 78924) / 1
LCM(78905,78924) = 6227498220 / 1
LCM(78905,78924) = 6227498220

Least Common Multiple (LCM) of 78905 and 78924 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78905 and 78924. First we will calculate the prime factors of 78905 and 78924.

Prime Factorization of 78905

Prime factors of 78905 are 5, 43, 367. Prime factorization of 78905 in exponential form is:

78905 = 51 × 431 × 3671

Prime Factorization of 78924

Prime factors of 78924 are 2, 3, 6577. Prime factorization of 78924 in exponential form is:

78924 = 22 × 31 × 65771

Now multiplying the highest exponent prime factors to calculate the LCM of 78905 and 78924.

LCM(78905,78924) = 51 × 431 × 3671 × 22 × 31 × 65771
LCM(78905,78924) = 6227498220