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What is the Least Common Multiple of 61761 and 61772?

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 61761 and 61772 is 3815100492.

LCM(61761,61772) = 3815100492

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Least Common Multiple of 61761 and 61772 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61761 and 61772, than apply into the LCM equation.

GCF(61761,61772) = 1
LCM(61761,61772) = ( 61761 × 61772) / 1
LCM(61761,61772) = 3815100492 / 1
LCM(61761,61772) = 3815100492

Least Common Multiple (LCM) of 61761 and 61772 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61761 and 61772. First we will calculate the prime factors of 61761 and 61772.

Prime Factorization of 61761

Prime factors of 61761 are 3, 7, 17, 173. Prime factorization of 61761 in exponential form is:

61761 = 31 × 71 × 171 × 1731

Prime Factorization of 61772

Prime factors of 61772 are 2, 15443. Prime factorization of 61772 in exponential form is:

61772 = 22 × 154431

Now multiplying the highest exponent prime factors to calculate the LCM of 61761 and 61772.

LCM(61761,61772) = 31 × 71 × 171 × 1731 × 22 × 154431
LCM(61761,61772) = 3815100492