What is the Least Common Multiple of 239 and 257?
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 239 and 257 is 61423.
LCM(239,257) = 61423
Least Common Multiple of 239 and 257 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 239 and 257, than apply into the LCM equation.
GCF(239,257) = 1
LCM(239,257) = ( 239 × 257) / 1
LCM(239,257) = 61423 / 1
LCM(239,257) = 61423
Least Common Multiple (LCM) of 239 and 257 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 239 and 257. First we will calculate the prime factors of 239 and 257.
Prime Factorization of 239
Prime factors of 239 are 239. Prime factorization of 239 in exponential form is:
239 = 2391
Prime Factorization of 257
Prime factors of 257 are 257. Prime factorization of 257 in exponential form is:
257 = 2571
Now multiplying the highest exponent prime factors to calculate the LCM of 239 and 257.
LCM(239,257) = 2391 × 2571
LCM(239,257) = 61423
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