What is the Least Common Multiple of 19205 and 19221?
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 19205 and 19221 is 369139305.
LCM(19205,19221) = 369139305
Least Common Multiple of 19205 and 19221 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19205 and 19221, than apply into the LCM equation.
GCF(19205,19221) = 1
LCM(19205,19221) = ( 19205 × 19221) / 1
LCM(19205,19221) = 369139305 / 1
LCM(19205,19221) = 369139305
Least Common Multiple (LCM) of 19205 and 19221 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 19205 and 19221. First we will calculate the prime factors of 19205 and 19221.
Prime Factorization of 19205
Prime factors of 19205 are 5, 23, 167. Prime factorization of 19205 in exponential form is:
19205 = 51 × 231 × 1671
Prime Factorization of 19221
Prime factors of 19221 are 3, 43, 149. Prime factorization of 19221 in exponential form is:
19221 = 31 × 431 × 1491
Now multiplying the highest exponent prime factors to calculate the LCM of 19205 and 19221.
LCM(19205,19221) = 51 × 231 × 1671 × 31 × 431 × 1491
LCM(19205,19221) = 369139305
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