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What is the Least Common Multiple of 3995 and 4010?

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 3995 and 4010 is 3203990.

LCM(3995,4010) = 3203990

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Least Common Multiple of 3995 and 4010 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3995 and 4010, than apply into the LCM equation.

GCF(3995,4010) = 5
LCM(3995,4010) = ( 3995 × 4010) / 5
LCM(3995,4010) = 16019950 / 5
LCM(3995,4010) = 3203990

Least Common Multiple (LCM) of 3995 and 4010 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3995 and 4010. First we will calculate the prime factors of 3995 and 4010.

Prime Factorization of 3995

Prime factors of 3995 are 5, 17, 47. Prime factorization of 3995 in exponential form is:

3995 = 51 × 171 × 471

Prime Factorization of 4010

Prime factors of 4010 are 2, 5, 401. Prime factorization of 4010 in exponential form is:

4010 = 21 × 51 × 4011

Now multiplying the highest exponent prime factors to calculate the LCM of 3995 and 4010.

LCM(3995,4010) = 51 × 171 × 471 × 21 × 4011
LCM(3995,4010) = 3203990