What is the Least Common Multiple of 257 and 265?
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 257 and 265 is 68105.
LCM(257,265) = 68105
Least Common Multiple of 257 and 265 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 257 and 265, than apply into the LCM equation.
GCF(257,265) = 1
LCM(257,265) = ( 257 × 265) / 1
LCM(257,265) = 68105 / 1
LCM(257,265) = 68105
Least Common Multiple (LCM) of 257 and 265 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 257 and 265. First we will calculate the prime factors of 257 and 265.
Prime Factorization of 257
Prime factors of 257 are 257. Prime factorization of 257 in exponential form is:
257 = 2571
Prime Factorization of 265
Prime factors of 265 are 5, 53. Prime factorization of 265 in exponential form is:
265 = 51 × 531
Now multiplying the highest exponent prime factors to calculate the LCM of 257 and 265.
LCM(257,265) = 2571 × 51 × 531
LCM(257,265) = 68105
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Related Least Common Multiples of 265
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