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What is the Least Common Multiple of 42969 and 42979?

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 42969 and 42979 is 1846764651.

LCM(42969,42979) = 1846764651

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Least Common Multiple of 42969 and 42979 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42969 and 42979, than apply into the LCM equation.

GCF(42969,42979) = 1
LCM(42969,42979) = ( 42969 × 42979) / 1
LCM(42969,42979) = 1846764651 / 1
LCM(42969,42979) = 1846764651

Least Common Multiple (LCM) of 42969 and 42979 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42969 and 42979. First we will calculate the prime factors of 42969 and 42979.

Prime Factorization of 42969

Prime factors of 42969 are 3, 14323. Prime factorization of 42969 in exponential form is:

42969 = 31 × 143231

Prime Factorization of 42979

Prime factors of 42979 are 42979. Prime factorization of 42979 in exponential form is:

42979 = 429791

Now multiplying the highest exponent prime factors to calculate the LCM of 42969 and 42979.

LCM(42969,42979) = 31 × 143231 × 429791
LCM(42969,42979) = 1846764651