What is the Least Common Multiple of 842 and 859?
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 842 and 859 is 723278.
LCM(842,859) = 723278
Least Common Multiple of 842 and 859 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 842 and 859, than apply into the LCM equation.
GCF(842,859) = 1
LCM(842,859) = ( 842 × 859) / 1
LCM(842,859) = 723278 / 1
LCM(842,859) = 723278
Least Common Multiple (LCM) of 842 and 859 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 842 and 859. First we will calculate the prime factors of 842 and 859.
Prime Factorization of 842
Prime factors of 842 are 2, 421. Prime factorization of 842 in exponential form is:
842 = 21 × 4211
Prime Factorization of 859
Prime factors of 859 are 859. Prime factorization of 859 in exponential form is:
859 = 8591
Now multiplying the highest exponent prime factors to calculate the LCM of 842 and 859.
LCM(842,859) = 21 × 4211 × 8591
LCM(842,859) = 723278
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