What is the Least Common Multiple of 858 and 863?
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 858 and 863 is 740454.
LCM(858,863) = 740454
Least Common Multiple of 858 and 863 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 858 and 863, than apply into the LCM equation.
GCF(858,863) = 1
LCM(858,863) = ( 858 × 863) / 1
LCM(858,863) = 740454 / 1
LCM(858,863) = 740454
Least Common Multiple (LCM) of 858 and 863 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 858 and 863. First we will calculate the prime factors of 858 and 863.
Prime Factorization of 858
Prime factors of 858 are 2, 3, 11, 13. Prime factorization of 858 in exponential form is:
858 = 21 × 31 × 111 × 131
Prime Factorization of 863
Prime factors of 863 are 863. Prime factorization of 863 in exponential form is:
863 = 8631
Now multiplying the highest exponent prime factors to calculate the LCM of 858 and 863.
LCM(858,863) = 21 × 31 × 111 × 131 × 8631
LCM(858,863) = 740454
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