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What is the Least Common Multiple of 71765 and 71778?

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 71765 and 71778 is 5151148170.

LCM(71765,71778) = 5151148170

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Least Common Multiple of 71765 and 71778 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71765 and 71778, than apply into the LCM equation.

GCF(71765,71778) = 1
LCM(71765,71778) = ( 71765 × 71778) / 1
LCM(71765,71778) = 5151148170 / 1
LCM(71765,71778) = 5151148170

Least Common Multiple (LCM) of 71765 and 71778 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71765 and 71778. First we will calculate the prime factors of 71765 and 71778.

Prime Factorization of 71765

Prime factors of 71765 are 5, 31, 463. Prime factorization of 71765 in exponential form is:

71765 = 51 × 311 × 4631

Prime Factorization of 71778

Prime factors of 71778 are 2, 3, 7, 1709. Prime factorization of 71778 in exponential form is:

71778 = 21 × 31 × 71 × 17091

Now multiplying the highest exponent prime factors to calculate the LCM of 71765 and 71778.

LCM(71765,71778) = 51 × 311 × 4631 × 21 × 31 × 71 × 17091
LCM(71765,71778) = 5151148170