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What is the Least Common Multiple of 78574 and 78582?

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 78574 and 78582 is 3087251034.

LCM(78574,78582) = 3087251034

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Least Common Multiple of 78574 and 78582 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78574 and 78582, than apply into the LCM equation.

GCF(78574,78582) = 2
LCM(78574,78582) = ( 78574 × 78582) / 2
LCM(78574,78582) = 6174502068 / 2
LCM(78574,78582) = 3087251034

Least Common Multiple (LCM) of 78574 and 78582 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78574 and 78582. First we will calculate the prime factors of 78574 and 78582.

Prime Factorization of 78574

Prime factors of 78574 are 2, 17, 2311. Prime factorization of 78574 in exponential form is:

78574 = 21 × 171 × 23111

Prime Factorization of 78582

Prime factors of 78582 are 2, 3, 7, 1871. Prime factorization of 78582 in exponential form is:

78582 = 21 × 31 × 71 × 18711

Now multiplying the highest exponent prime factors to calculate the LCM of 78574 and 78582.

LCM(78574,78582) = 21 × 171 × 23111 × 31 × 71 × 18711
LCM(78574,78582) = 3087251034