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What is the Least Common Multiple of 72765 and 72778?

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 72765 and 72778 is 5295691170.

LCM(72765,72778) = 5295691170

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Least Common Multiple of 72765 and 72778 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72765 and 72778, than apply into the LCM equation.

GCF(72765,72778) = 1
LCM(72765,72778) = ( 72765 × 72778) / 1
LCM(72765,72778) = 5295691170 / 1
LCM(72765,72778) = 5295691170

Least Common Multiple (LCM) of 72765 and 72778 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72765 and 72778. First we will calculate the prime factors of 72765 and 72778.

Prime Factorization of 72765

Prime factors of 72765 are 3, 5, 7, 11. Prime factorization of 72765 in exponential form is:

72765 = 33 × 51 × 72 × 111

Prime Factorization of 72778

Prime factors of 72778 are 2, 36389. Prime factorization of 72778 in exponential form is:

72778 = 21 × 363891

Now multiplying the highest exponent prime factors to calculate the LCM of 72765 and 72778.

LCM(72765,72778) = 33 × 51 × 72 × 111 × 21 × 363891
LCM(72765,72778) = 5295691170