What is the Least Common Multiple of 278 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 278 and 298 is 41422.
LCM(278,298) = 41422
Least Common Multiple of 278 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 278 and 298, than apply into the LCM equation.
GCF(278,298) = 2
LCM(278,298) = ( 278 × 298) / 2
LCM(278,298) = 82844 / 2
LCM(278,298) = 41422
Least Common Multiple (LCM) of 278 and 298 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 278 and 298. First we will calculate the prime factors of 278 and 298.
Prime Factorization of 278
Prime factors of 278 are 2, 139. Prime factorization of 278 in exponential form is:
278 = 21 × 1391
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 278 and 298.
LCM(278,298) = 21 × 1391 × 1491
LCM(278,298) = 41422
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Related Least Common Multiples of 298
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