What is the Least Common Multiple of 637 and 650?
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 637 and 650 is 31850.
LCM(637,650) = 31850
Least Common Multiple of 637 and 650 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 637 and 650, than apply into the LCM equation.
GCF(637,650) = 13
LCM(637,650) = ( 637 × 650) / 13
LCM(637,650) = 414050 / 13
LCM(637,650) = 31850
Least Common Multiple (LCM) of 637 and 650 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 637 and 650. First we will calculate the prime factors of 637 and 650.
Prime Factorization of 637
Prime factors of 637 are 7, 13. Prime factorization of 637 in exponential form is:
637 = 72 × 131
Prime Factorization of 650
Prime factors of 650 are 2, 5, 13. Prime factorization of 650 in exponential form is:
650 = 21 × 52 × 131
Now multiplying the highest exponent prime factors to calculate the LCM of 637 and 650.
LCM(637,650) = 72 × 131 × 21 × 52
LCM(637,650) = 31850
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