What is the Least Common Multiple of 845 and 850?
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 845 and 850 is 143650.
LCM(845,850) = 143650
Least Common Multiple of 845 and 850 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 845 and 850, than apply into the LCM equation.
GCF(845,850) = 5
LCM(845,850) = ( 845 × 850) / 5
LCM(845,850) = 718250 / 5
LCM(845,850) = 143650
Least Common Multiple (LCM) of 845 and 850 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 845 and 850. First we will calculate the prime factors of 845 and 850.
Prime Factorization of 845
Prime factors of 845 are 5, 13. Prime factorization of 845 in exponential form is:
845 = 51 × 132
Prime Factorization of 850
Prime factors of 850 are 2, 5, 17. Prime factorization of 850 in exponential form is:
850 = 21 × 52 × 171
Now multiplying the highest exponent prime factors to calculate the LCM of 845 and 850.
LCM(845,850) = 52 × 132 × 21 × 171
LCM(845,850) = 143650
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