What is the Least Common Multiple of 291 and 298?
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 291 and 298 is 86718.
LCM(291,298) = 86718
Least Common Multiple of 291 and 298 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 291 and 298, than apply into the LCM equation.
GCF(291,298) = 1
LCM(291,298) = ( 291 × 298) / 1
LCM(291,298) = 86718 / 1
LCM(291,298) = 86718
Least Common Multiple (LCM) of 291 and 298 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 291 and 298. First we will calculate the prime factors of 291 and 298.
Prime Factorization of 291
Prime factors of 291 are 3, 97. Prime factorization of 291 in exponential form is:
291 = 31 × 971
Prime Factorization of 298
Prime factors of 298 are 2, 149. Prime factorization of 298 in exponential form is:
298 = 21 × 1491
Now multiplying the highest exponent prime factors to calculate the LCM of 291 and 298.
LCM(291,298) = 31 × 971 × 21 × 1491
LCM(291,298) = 86718
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