What is the Least Common Multiple of 873 and 878?
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 873 and 878 is 766494.
LCM(873,878) = 766494
Least Common Multiple of 873 and 878 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 873 and 878, than apply into the LCM equation.
GCF(873,878) = 1
LCM(873,878) = ( 873 × 878) / 1
LCM(873,878) = 766494 / 1
LCM(873,878) = 766494
Least Common Multiple (LCM) of 873 and 878 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 873 and 878. First we will calculate the prime factors of 873 and 878.
Prime Factorization of 873
Prime factors of 873 are 3, 97. Prime factorization of 873 in exponential form is:
873 = 32 × 971
Prime Factorization of 878
Prime factors of 878 are 2, 439. Prime factorization of 878 in exponential form is:
878 = 21 × 4391
Now multiplying the highest exponent prime factors to calculate the LCM of 873 and 878.
LCM(873,878) = 32 × 971 × 21 × 4391
LCM(873,878) = 766494
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