What is the Least Common Multiple of 255 and 274?
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 255 and 274 is 69870.
LCM(255,274) = 69870
Least Common Multiple of 255 and 274 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 255 and 274, than apply into the LCM equation.
GCF(255,274) = 1
LCM(255,274) = ( 255 × 274) / 1
LCM(255,274) = 69870 / 1
LCM(255,274) = 69870
Least Common Multiple (LCM) of 255 and 274 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 255 and 274. First we will calculate the prime factors of 255 and 274.
Prime Factorization of 255
Prime factors of 255 are 3, 5, 17. Prime factorization of 255 in exponential form is:
255 = 31 × 51 × 171
Prime Factorization of 274
Prime factors of 274 are 2, 137. Prime factorization of 274 in exponential form is:
274 = 21 × 1371
Now multiplying the highest exponent prime factors to calculate the LCM of 255 and 274.
LCM(255,274) = 31 × 51 × 171 × 21 × 1371
LCM(255,274) = 69870
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