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What is the Least Common Multiple of 754 and 774?

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 754 and 774 is 291798.

LCM(754,774) = 291798

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Least Common Multiple of 754 and 774 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 754 and 774, than apply into the LCM equation.

GCF(754,774) = 2
LCM(754,774) = ( 754 × 774) / 2
LCM(754,774) = 583596 / 2
LCM(754,774) = 291798

Least Common Multiple (LCM) of 754 and 774 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 754 and 774. First we will calculate the prime factors of 754 and 774.

Prime Factorization of 754

Prime factors of 754 are 2, 13, 29. Prime factorization of 754 in exponential form is:

754 = 21 × 131 × 291

Prime Factorization of 774

Prime factors of 774 are 2, 3, 43. Prime factorization of 774 in exponential form is:

774 = 21 × 32 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 754 and 774.

LCM(754,774) = 21 × 131 × 291 × 32 × 431
LCM(754,774) = 291798