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What is the Least Common Multiple of 42965 and 42971?

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 42965 and 42971 is 1846249015.

LCM(42965,42971) = 1846249015

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Least Common Multiple of 42965 and 42971 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42965 and 42971, than apply into the LCM equation.

GCF(42965,42971) = 1
LCM(42965,42971) = ( 42965 × 42971) / 1
LCM(42965,42971) = 1846249015 / 1
LCM(42965,42971) = 1846249015

Least Common Multiple (LCM) of 42965 and 42971 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42965 and 42971. First we will calculate the prime factors of 42965 and 42971.

Prime Factorization of 42965

Prime factors of 42965 are 5, 13, 661. Prime factorization of 42965 in exponential form is:

42965 = 51 × 131 × 6611

Prime Factorization of 42971

Prime factors of 42971 are 97, 443. Prime factorization of 42971 in exponential form is:

42971 = 971 × 4431

Now multiplying the highest exponent prime factors to calculate the LCM of 42965 and 42971.

LCM(42965,42971) = 51 × 131 × 6611 × 971 × 4431
LCM(42965,42971) = 1846249015