What is the Least Common Multiple of 370 and 381?
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 370 and 381 is 140970.
LCM(370,381) = 140970
Least Common Multiple of 370 and 381 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 370 and 381, than apply into the LCM equation.
GCF(370,381) = 1
LCM(370,381) = ( 370 × 381) / 1
LCM(370,381) = 140970 / 1
LCM(370,381) = 140970
Least Common Multiple (LCM) of 370 and 381 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 370 and 381. First we will calculate the prime factors of 370 and 381.
Prime Factorization of 370
Prime factors of 370 are 2, 5, 37. Prime factorization of 370 in exponential form is:
370 = 21 × 51 × 371
Prime Factorization of 381
Prime factors of 381 are 3, 127. Prime factorization of 381 in exponential form is:
381 = 31 × 1271
Now multiplying the highest exponent prime factors to calculate the LCM of 370 and 381.
LCM(370,381) = 21 × 51 × 371 × 31 × 1271
LCM(370,381) = 140970
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