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What is the Least Common Multiple of 70920 and 70939?

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 70920 and 70939 is 5030993880.

LCM(70920,70939) = 5030993880

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Least Common Multiple of 70920 and 70939 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70920 and 70939, than apply into the LCM equation.

GCF(70920,70939) = 1
LCM(70920,70939) = ( 70920 × 70939) / 1
LCM(70920,70939) = 5030993880 / 1
LCM(70920,70939) = 5030993880

Least Common Multiple (LCM) of 70920 and 70939 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70920 and 70939. First we will calculate the prime factors of 70920 and 70939.

Prime Factorization of 70920

Prime factors of 70920 are 2, 3, 5, 197. Prime factorization of 70920 in exponential form is:

70920 = 23 × 32 × 51 × 1971

Prime Factorization of 70939

Prime factors of 70939 are 11, 6449. Prime factorization of 70939 in exponential form is:

70939 = 111 × 64491

Now multiplying the highest exponent prime factors to calculate the LCM of 70920 and 70939.

LCM(70920,70939) = 23 × 32 × 51 × 1971 × 111 × 64491
LCM(70920,70939) = 5030993880