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What is the Least Common Multiple of 77142 and 77148?

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 77142 and 77148 is 991891836.

LCM(77142,77148) = 991891836

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Least Common Multiple of 77142 and 77148 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77142 and 77148, than apply into the LCM equation.

GCF(77142,77148) = 6
LCM(77142,77148) = ( 77142 × 77148) / 6
LCM(77142,77148) = 5951351016 / 6
LCM(77142,77148) = 991891836

Least Common Multiple (LCM) of 77142 and 77148 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77142 and 77148. First we will calculate the prime factors of 77142 and 77148.

Prime Factorization of 77142

Prime factors of 77142 are 2, 3, 13, 23, 43. Prime factorization of 77142 in exponential form is:

77142 = 21 × 31 × 131 × 231 × 431

Prime Factorization of 77148

Prime factors of 77148 are 2, 3, 2143. Prime factorization of 77148 in exponential form is:

77148 = 22 × 32 × 21431

Now multiplying the highest exponent prime factors to calculate the LCM of 77142 and 77148.

LCM(77142,77148) = 22 × 32 × 131 × 231 × 431 × 21431
LCM(77142,77148) = 991891836