What is the Least Common Multiple of 205 and 218?
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 205 and 218 is 44690.
LCM(205,218) = 44690
Least Common Multiple of 205 and 218 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 205 and 218, than apply into the LCM equation.
GCF(205,218) = 1
LCM(205,218) = ( 205 × 218) / 1
LCM(205,218) = 44690 / 1
LCM(205,218) = 44690
Least Common Multiple (LCM) of 205 and 218 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 205 and 218. First we will calculate the prime factors of 205 and 218.
Prime Factorization of 205
Prime factors of 205 are 5, 41. Prime factorization of 205 in exponential form is:
205 = 51 × 411
Prime Factorization of 218
Prime factors of 218 are 2, 109. Prime factorization of 218 in exponential form is:
218 = 21 × 1091
Now multiplying the highest exponent prime factors to calculate the LCM of 205 and 218.
LCM(205,218) = 51 × 411 × 21 × 1091
LCM(205,218) = 44690
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