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What is the Least Common Multiple of 77455 and 77460?

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 77455 and 77460 is 1199932860.

LCM(77455,77460) = 1199932860

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Least Common Multiple of 77455 and 77460 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77455 and 77460, than apply into the LCM equation.

GCF(77455,77460) = 5
LCM(77455,77460) = ( 77455 × 77460) / 5
LCM(77455,77460) = 5999664300 / 5
LCM(77455,77460) = 1199932860

Least Common Multiple (LCM) of 77455 and 77460 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77455 and 77460. First we will calculate the prime factors of 77455 and 77460.

Prime Factorization of 77455

Prime factors of 77455 are 5, 7, 2213. Prime factorization of 77455 in exponential form is:

77455 = 51 × 71 × 22131

Prime Factorization of 77460

Prime factors of 77460 are 2, 3, 5, 1291. Prime factorization of 77460 in exponential form is:

77460 = 22 × 31 × 51 × 12911

Now multiplying the highest exponent prime factors to calculate the LCM of 77455 and 77460.

LCM(77455,77460) = 51 × 71 × 22131 × 22 × 31 × 12911
LCM(77455,77460) = 1199932860