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What is the Least Common Multiple of 42046 and 42065?

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 42046 and 42065 is 1768664990.

LCM(42046,42065) = 1768664990

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Least Common Multiple of 42046 and 42065 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42046 and 42065, than apply into the LCM equation.

GCF(42046,42065) = 1
LCM(42046,42065) = ( 42046 × 42065) / 1
LCM(42046,42065) = 1768664990 / 1
LCM(42046,42065) = 1768664990

Least Common Multiple (LCM) of 42046 and 42065 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42046 and 42065. First we will calculate the prime factors of 42046 and 42065.

Prime Factorization of 42046

Prime factors of 42046 are 2, 21023. Prime factorization of 42046 in exponential form is:

42046 = 21 × 210231

Prime Factorization of 42065

Prime factors of 42065 are 5, 47, 179. Prime factorization of 42065 in exponential form is:

42065 = 51 × 471 × 1791

Now multiplying the highest exponent prime factors to calculate the LCM of 42046 and 42065.

LCM(42046,42065) = 21 × 210231 × 51 × 471 × 1791
LCM(42046,42065) = 1768664990