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What is the Least Common Multiple of 97838 and 97842?

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 97838 and 97842 is 4786332798.

LCM(97838,97842) = 4786332798

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Least Common Multiple of 97838 and 97842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 97838 and 97842, than apply into the LCM equation.

GCF(97838,97842) = 2
LCM(97838,97842) = ( 97838 × 97842) / 2
LCM(97838,97842) = 9572665596 / 2
LCM(97838,97842) = 4786332798

Least Common Multiple (LCM) of 97838 and 97842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 97838 and 97842. First we will calculate the prime factors of 97838 and 97842.

Prime Factorization of 97838

Prime factors of 97838 are 2, 13, 53, 71. Prime factorization of 97838 in exponential form is:

97838 = 21 × 131 × 531 × 711

Prime Factorization of 97842

Prime factors of 97842 are 2, 3, 23, 709. Prime factorization of 97842 in exponential form is:

97842 = 21 × 31 × 231 × 7091

Now multiplying the highest exponent prime factors to calculate the LCM of 97838 and 97842.

LCM(97838,97842) = 21 × 131 × 531 × 711 × 31 × 231 × 7091
LCM(97838,97842) = 4786332798