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What is the Least Common Multiple of 97842 and 97858?

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 97842 and 97858 is 4787311218.

LCM(97842,97858) = 4787311218

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Least Common Multiple of 97842 and 97858 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 97842 and 97858, than apply into the LCM equation.

GCF(97842,97858) = 2
LCM(97842,97858) = ( 97842 × 97858) / 2
LCM(97842,97858) = 9574622436 / 2
LCM(97842,97858) = 4787311218

Least Common Multiple (LCM) of 97842 and 97858 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 97842 and 97858. First we will calculate the prime factors of 97842 and 97858.

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

Prime Factorization of 97858

Prime factors of 97858 are 2, 113, 433. Prime factorization of 97858 in exponential form is:

97858 = 21 × 1131 × 4331

Now multiplying the highest exponent prime factors to calculate the LCM of 97842 and 97858.

LCM(97842,97858) = 21 × 31 × 231 × 7091 × 1131 × 4331
LCM(97842,97858) = 4787311218