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What is the Least Common Multiple of 56760 and 56780?

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 56760 and 56780 is 161141640.

LCM(56760,56780) = 161141640

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Least Common Multiple of 56760 and 56780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56760 and 56780, than apply into the LCM equation.

GCF(56760,56780) = 20
LCM(56760,56780) = ( 56760 × 56780) / 20
LCM(56760,56780) = 3222832800 / 20
LCM(56760,56780) = 161141640

Least Common Multiple (LCM) of 56760 and 56780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56760 and 56780. First we will calculate the prime factors of 56760 and 56780.

Prime Factorization of 56760

Prime factors of 56760 are 2, 3, 5, 11, 43. Prime factorization of 56760 in exponential form is:

56760 = 23 × 31 × 51 × 111 × 431

Prime Factorization of 56780

Prime factors of 56780 are 2, 5, 17, 167. Prime factorization of 56780 in exponential form is:

56780 = 22 × 51 × 171 × 1671

Now multiplying the highest exponent prime factors to calculate the LCM of 56760 and 56780.

LCM(56760,56780) = 23 × 31 × 51 × 111 × 431 × 171 × 1671
LCM(56760,56780) = 161141640