What is the Least Common Multiple of 260 and 272?
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 272 is 17680.
LCM(260,272) = 17680
Least Common Multiple of 260 and 272 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 272, than apply into the LCM equation.
GCF(260,272) = 4
LCM(260,272) = ( 260 × 272) / 4
LCM(260,272) = 70720 / 4
LCM(260,272) = 17680
Least Common Multiple (LCM) of 260 and 272 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 260 and 272. First we will calculate the prime factors of 260 and 272.
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 272
Prime factors of 272 are 2, 17. Prime factorization of 272 in exponential form is:
272 = 24 × 171
Now multiplying the highest exponent prime factors to calculate the LCM of 260 and 272.
LCM(260,272) = 24 × 51 × 131 × 171
LCM(260,272) = 17680
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