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What is the Least Common Multiple of 78954 and 78958?

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 78954 and 78958 is 3117024966.

LCM(78954,78958) = 3117024966

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Least Common Multiple of 78954 and 78958 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78954 and 78958, than apply into the LCM equation.

GCF(78954,78958) = 2
LCM(78954,78958) = ( 78954 × 78958) / 2
LCM(78954,78958) = 6234049932 / 2
LCM(78954,78958) = 3117024966

Least Common Multiple (LCM) of 78954 and 78958 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78954 and 78958. First we will calculate the prime factors of 78954 and 78958.

Prime Factorization of 78954

Prime factors of 78954 are 2, 3, 13159. Prime factorization of 78954 in exponential form is:

78954 = 21 × 31 × 131591

Prime Factorization of 78958

Prime factors of 78958 are 2, 11, 37, 97. Prime factorization of 78958 in exponential form is:

78958 = 21 × 111 × 371 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 78954 and 78958.

LCM(78954,78958) = 21 × 31 × 131591 × 111 × 371 × 971
LCM(78954,78958) = 3117024966