What is the Least Common Multiple of 261 and 268?
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 261 and 268 is 69948.
LCM(261,268) = 69948
Least Common Multiple of 261 and 268 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 261 and 268, than apply into the LCM equation.
GCF(261,268) = 1
LCM(261,268) = ( 261 × 268) / 1
LCM(261,268) = 69948 / 1
LCM(261,268) = 69948
Least Common Multiple (LCM) of 261 and 268 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 261 and 268. First we will calculate the prime factors of 261 and 268.
Prime Factorization of 261
Prime factors of 261 are 3, 29. Prime factorization of 261 in exponential form is:
261 = 32 × 291
Prime Factorization of 268
Prime factors of 268 are 2, 67. Prime factorization of 268 in exponential form is:
268 = 22 × 671
Now multiplying the highest exponent prime factors to calculate the LCM of 261 and 268.
LCM(261,268) = 32 × 291 × 22 × 671
LCM(261,268) = 69948
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Related Least Common Multiples of 268
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