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What is the Least Common Multiple of 61930 and 61946?

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 61930 and 61946 is 1918157890.

LCM(61930,61946) = 1918157890

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Least Common Multiple of 61930 and 61946 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61930 and 61946, than apply into the LCM equation.

GCF(61930,61946) = 2
LCM(61930,61946) = ( 61930 × 61946) / 2
LCM(61930,61946) = 3836315780 / 2
LCM(61930,61946) = 1918157890

Least Common Multiple (LCM) of 61930 and 61946 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61930 and 61946. First we will calculate the prime factors of 61930 and 61946.

Prime Factorization of 61930

Prime factors of 61930 are 2, 5, 11, 563. Prime factorization of 61930 in exponential form is:

61930 = 21 × 51 × 111 × 5631

Prime Factorization of 61946

Prime factors of 61946 are 2, 47, 659. Prime factorization of 61946 in exponential form is:

61946 = 21 × 471 × 6591

Now multiplying the highest exponent prime factors to calculate the LCM of 61930 and 61946.

LCM(61930,61946) = 21 × 51 × 111 × 5631 × 471 × 6591
LCM(61930,61946) = 1918157890