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What is the Least Common Multiple of 3842 and 3860?

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 3842 and 3860 is 7415060.

LCM(3842,3860) = 7415060

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Least Common Multiple of 3842 and 3860 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3842 and 3860, than apply into the LCM equation.

GCF(3842,3860) = 2
LCM(3842,3860) = ( 3842 × 3860) / 2
LCM(3842,3860) = 14830120 / 2
LCM(3842,3860) = 7415060

Least Common Multiple (LCM) of 3842 and 3860 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3842 and 3860. First we will calculate the prime factors of 3842 and 3860.

Prime Factorization of 3842

Prime factors of 3842 are 2, 17, 113. Prime factorization of 3842 in exponential form is:

3842 = 21 × 171 × 1131

Prime Factorization of 3860

Prime factors of 3860 are 2, 5, 193. Prime factorization of 3860 in exponential form is:

3860 = 22 × 51 × 1931

Now multiplying the highest exponent prime factors to calculate the LCM of 3842 and 3860.

LCM(3842,3860) = 22 × 171 × 1131 × 51 × 1931
LCM(3842,3860) = 7415060