What is the Least Common Multiple of 394 and 410?
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 394 and 410 is 80770.
LCM(394,410) = 80770
Least Common Multiple of 394 and 410 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 394 and 410, than apply into the LCM equation.
GCF(394,410) = 2
LCM(394,410) = ( 394 × 410) / 2
LCM(394,410) = 161540 / 2
LCM(394,410) = 80770
Least Common Multiple (LCM) of 394 and 410 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 394 and 410. First we will calculate the prime factors of 394 and 410.
Prime Factorization of 394
Prime factors of 394 are 2, 197. Prime factorization of 394 in exponential form is:
394 = 21 × 1971
Prime Factorization of 410
Prime factors of 410 are 2, 5, 41. Prime factorization of 410 in exponential form is:
410 = 21 × 51 × 411
Now multiplying the highest exponent prime factors to calculate the LCM of 394 and 410.
LCM(394,410) = 21 × 1971 × 51 × 411
LCM(394,410) = 80770
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