What is the Least Common Multiple of 13640 and 13657?
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 13640 and 13657 is 186281480.
LCM(13640,13657) = 186281480
Least Common Multiple of 13640 and 13657 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13640 and 13657, than apply into the LCM equation.
GCF(13640,13657) = 1
LCM(13640,13657) = ( 13640 × 13657) / 1
LCM(13640,13657) = 186281480 / 1
LCM(13640,13657) = 186281480
Least Common Multiple (LCM) of 13640 and 13657 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 13640 and 13657. First we will calculate the prime factors of 13640 and 13657.
Prime Factorization of 13640
Prime factors of 13640 are 2, 5, 11, 31. Prime factorization of 13640 in exponential form is:
13640 = 23 × 51 × 111 × 311
Prime Factorization of 13657
Prime factors of 13657 are 7, 1951. Prime factorization of 13657 in exponential form is:
13657 = 71 × 19511
Now multiplying the highest exponent prime factors to calculate the LCM of 13640 and 13657.
LCM(13640,13657) = 23 × 51 × 111 × 311 × 71 × 19511
LCM(13640,13657) = 186281480
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