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What is the Least Common Multiple of 38961 and 38974?

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 38961 and 38974 is 116805078.

LCM(38961,38974) = 116805078

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Least Common Multiple of 38961 and 38974 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38961 and 38974, than apply into the LCM equation.

GCF(38961,38974) = 13
LCM(38961,38974) = ( 38961 × 38974) / 13
LCM(38961,38974) = 1518466014 / 13
LCM(38961,38974) = 116805078

Least Common Multiple (LCM) of 38961 and 38974 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38961 and 38974. First we will calculate the prime factors of 38961 and 38974.

Prime Factorization of 38961

Prime factors of 38961 are 3, 13, 37. Prime factorization of 38961 in exponential form is:

38961 = 34 × 131 × 371

Prime Factorization of 38974

Prime factors of 38974 are 2, 13, 1499. Prime factorization of 38974 in exponential form is:

38974 = 21 × 131 × 14991

Now multiplying the highest exponent prime factors to calculate the LCM of 38961 and 38974.

LCM(38961,38974) = 34 × 131 × 371 × 21 × 14991
LCM(38961,38974) = 116805078