GCF and LCM Calculator Logo

What is the Least Common Multiple of 77401 and 77415?

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 77401 and 77415 is 5991998415.

LCM(77401,77415) = 5991998415

LCM Calculator and
and

Least Common Multiple of 77401 and 77415 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77401 and 77415, than apply into the LCM equation.

GCF(77401,77415) = 1
LCM(77401,77415) = ( 77401 × 77415) / 1
LCM(77401,77415) = 5991998415 / 1
LCM(77401,77415) = 5991998415

Least Common Multiple (LCM) of 77401 and 77415 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77401 and 77415. First we will calculate the prime factors of 77401 and 77415.

Prime Factorization of 77401

Prime factors of 77401 are 17, 29, 157. Prime factorization of 77401 in exponential form is:

77401 = 171 × 291 × 1571

Prime Factorization of 77415

Prime factors of 77415 are 3, 5, 13, 397. Prime factorization of 77415 in exponential form is:

77415 = 31 × 51 × 131 × 3971

Now multiplying the highest exponent prime factors to calculate the LCM of 77401 and 77415.

LCM(77401,77415) = 171 × 291 × 1571 × 31 × 51 × 131 × 3971
LCM(77401,77415) = 5991998415