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What is the Least Common Multiple of 33781 and 33790?

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 33781 and 33790 is 1141459990.

LCM(33781,33790) = 1141459990

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Least Common Multiple of 33781 and 33790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 33781 and 33790, than apply into the LCM equation.

GCF(33781,33790) = 1
LCM(33781,33790) = ( 33781 × 33790) / 1
LCM(33781,33790) = 1141459990 / 1
LCM(33781,33790) = 1141459990

Least Common Multiple (LCM) of 33781 and 33790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 33781 and 33790. First we will calculate the prime factors of 33781 and 33790.

Prime Factorization of 33781

Prime factors of 33781 are 11, 37, 83. Prime factorization of 33781 in exponential form is:

33781 = 111 × 371 × 831

Prime Factorization of 33790

Prime factors of 33790 are 2, 5, 31, 109. Prime factorization of 33790 in exponential form is:

33790 = 21 × 51 × 311 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 33781 and 33790.

LCM(33781,33790) = 111 × 371 × 831 × 21 × 51 × 311 × 1091
LCM(33781,33790) = 1141459990