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What is the Least Common Multiple of 2642 and 2661?

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 2642 and 2661 is 7030362.

LCM(2642,2661) = 7030362

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Least Common Multiple of 2642 and 2661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2642 and 2661, than apply into the LCM equation.

GCF(2642,2661) = 1
LCM(2642,2661) = ( 2642 × 2661) / 1
LCM(2642,2661) = 7030362 / 1
LCM(2642,2661) = 7030362

Least Common Multiple (LCM) of 2642 and 2661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2642 and 2661. First we will calculate the prime factors of 2642 and 2661.

Prime Factorization of 2642

Prime factors of 2642 are 2, 1321. Prime factorization of 2642 in exponential form is:

2642 = 21 × 13211

Prime Factorization of 2661

Prime factors of 2661 are 3, 887. Prime factorization of 2661 in exponential form is:

2661 = 31 × 8871

Now multiplying the highest exponent prime factors to calculate the LCM of 2642 and 2661.

LCM(2642,2661) = 21 × 13211 × 31 × 8871
LCM(2642,2661) = 7030362