What is the Least Common Multiple of 260 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 260 and 265 is 13780.
LCM(260,265) = 13780
Least Common Multiple of 260 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 260 and 265, than apply into the LCM equation.
GCF(260,265) = 5
LCM(260,265) = ( 260 × 265) / 5
LCM(260,265) = 68900 / 5
LCM(260,265) = 13780
Least Common Multiple (LCM) of 260 and 265 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 260 and 265. First we will calculate the prime factors of 260 and 265.
Prime Factorization of 260
Prime factors of 260 are 2, 5, 13. Prime factorization of 260 in exponential form is:
260 = 22 × 51 × 131
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 260 and 265.
LCM(260,265) = 22 × 51 × 131 × 531
LCM(260,265) = 13780
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