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What is the Least Common Multiple of 61790 and 61810?

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 61790 and 61810 is 381923990.

LCM(61790,61810) = 381923990

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Least Common Multiple of 61790 and 61810 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61790 and 61810, than apply into the LCM equation.

GCF(61790,61810) = 10
LCM(61790,61810) = ( 61790 × 61810) / 10
LCM(61790,61810) = 3819239900 / 10
LCM(61790,61810) = 381923990

Least Common Multiple (LCM) of 61790 and 61810 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61790 and 61810. First we will calculate the prime factors of 61790 and 61810.

Prime Factorization of 61790

Prime factors of 61790 are 2, 5, 37, 167. Prime factorization of 61790 in exponential form is:

61790 = 21 × 51 × 371 × 1671

Prime Factorization of 61810

Prime factors of 61810 are 2, 5, 7, 883. Prime factorization of 61810 in exponential form is:

61810 = 21 × 51 × 71 × 8831

Now multiplying the highest exponent prime factors to calculate the LCM of 61790 and 61810.

LCM(61790,61810) = 21 × 51 × 371 × 1671 × 71 × 8831
LCM(61790,61810) = 381923990