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What is the Least Common Multiple of 72428 and 72435?

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 72428 and 72435 is 5246322180.

LCM(72428,72435) = 5246322180

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Least Common Multiple of 72428 and 72435 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72428 and 72435, than apply into the LCM equation.

GCF(72428,72435) = 1
LCM(72428,72435) = ( 72428 × 72435) / 1
LCM(72428,72435) = 5246322180 / 1
LCM(72428,72435) = 5246322180

Least Common Multiple (LCM) of 72428 and 72435 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72428 and 72435. First we will calculate the prime factors of 72428 and 72435.

Prime Factorization of 72428

Prime factors of 72428 are 2, 19, 953. Prime factorization of 72428 in exponential form is:

72428 = 22 × 191 × 9531

Prime Factorization of 72435

Prime factors of 72435 are 3, 5, 11, 439. Prime factorization of 72435 in exponential form is:

72435 = 31 × 51 × 111 × 4391

Now multiplying the highest exponent prime factors to calculate the LCM of 72428 and 72435.

LCM(72428,72435) = 22 × 191 × 9531 × 31 × 51 × 111 × 4391
LCM(72428,72435) = 5246322180