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What is the Least Common Multiple of 97658 and 97678?

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 97658 and 97678 is 4769519062.

LCM(97658,97678) = 4769519062

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Least Common Multiple of 97658 and 97678 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 97658 and 97678, than apply into the LCM equation.

GCF(97658,97678) = 2
LCM(97658,97678) = ( 97658 × 97678) / 2
LCM(97658,97678) = 9539038124 / 2
LCM(97658,97678) = 4769519062

Least Common Multiple (LCM) of 97658 and 97678 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 97658 and 97678. First we will calculate the prime factors of 97658 and 97678.

Prime Factorization of 97658

Prime factors of 97658 are 2, 11, 23, 193. Prime factorization of 97658 in exponential form is:

97658 = 21 × 111 × 231 × 1931

Prime Factorization of 97678

Prime factors of 97678 are 2, 7, 6977. Prime factorization of 97678 in exponential form is:

97678 = 21 × 71 × 69771

Now multiplying the highest exponent prime factors to calculate the LCM of 97658 and 97678.

LCM(97658,97678) = 21 × 111 × 231 × 1931 × 71 × 69771
LCM(97658,97678) = 4769519062