What is the Least Common Multiple of 190 and 196?
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 190 and 196 is 18620.
LCM(190,196) = 18620
Least Common Multiple of 190 and 196 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 190 and 196, than apply into the LCM equation.
GCF(190,196) = 2
LCM(190,196) = ( 190 × 196) / 2
LCM(190,196) = 37240 / 2
LCM(190,196) = 18620
Least Common Multiple (LCM) of 190 and 196 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 190 and 196. First we will calculate the prime factors of 190 and 196.
Prime Factorization of 190
Prime factors of 190 are 2, 5, 19. Prime factorization of 190 in exponential form is:
190 = 21 × 51 × 191
Prime Factorization of 196
Prime factors of 196 are 2, 7. Prime factorization of 196 in exponential form is:
196 = 22 × 72
Now multiplying the highest exponent prime factors to calculate the LCM of 190 and 196.
LCM(190,196) = 22 × 51 × 191 × 72
LCM(190,196) = 18620
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