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What is the Least Common Multiple of 760 and 764?

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 760 and 764 is 145160.

LCM(760,764) = 145160

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Least Common Multiple of 760 and 764 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 760 and 764, than apply into the LCM equation.

GCF(760,764) = 4
LCM(760,764) = ( 760 × 764) / 4
LCM(760,764) = 580640 / 4
LCM(760,764) = 145160

Least Common Multiple (LCM) of 760 and 764 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 760 and 764. First we will calculate the prime factors of 760 and 764.

Prime Factorization of 760

Prime factors of 760 are 2, 5, 19. Prime factorization of 760 in exponential form is:

760 = 23 × 51 × 191

Prime Factorization of 764

Prime factors of 764 are 2, 191. Prime factorization of 764 in exponential form is:

764 = 22 × 1911

Now multiplying the highest exponent prime factors to calculate the LCM of 760 and 764.

LCM(760,764) = 23 × 51 × 191 × 1911
LCM(760,764) = 145160