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What is the Least Common Multiple of 42947 and 42962?

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 42947 and 42962 is 1845089014.

LCM(42947,42962) = 1845089014

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Least Common Multiple of 42947 and 42962 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42947 and 42962, than apply into the LCM equation.

GCF(42947,42962) = 1
LCM(42947,42962) = ( 42947 × 42962) / 1
LCM(42947,42962) = 1845089014 / 1
LCM(42947,42962) = 1845089014

Least Common Multiple (LCM) of 42947 and 42962 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42947 and 42962. First we will calculate the prime factors of 42947 and 42962.

Prime Factorization of 42947

Prime factors of 42947 are 67, 641. Prime factorization of 42947 in exponential form is:

42947 = 671 × 6411

Prime Factorization of 42962

Prime factors of 42962 are 2, 21481. Prime factorization of 42962 in exponential form is:

42962 = 21 × 214811

Now multiplying the highest exponent prime factors to calculate the LCM of 42947 and 42962.

LCM(42947,42962) = 671 × 6411 × 21 × 214811
LCM(42947,42962) = 1845089014