What is the Least Common Multiple of 6987 and 7005?
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 6987 and 7005 is 16314645.
LCM(6987,7005) = 16314645
Least Common Multiple of 6987 and 7005 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6987 and 7005, than apply into the LCM equation.
GCF(6987,7005) = 3
LCM(6987,7005) = ( 6987 × 7005) / 3
LCM(6987,7005) = 48943935 / 3
LCM(6987,7005) = 16314645
Least Common Multiple (LCM) of 6987 and 7005 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 6987 and 7005. First we will calculate the prime factors of 6987 and 7005.
Prime Factorization of 6987
Prime factors of 6987 are 3, 17, 137. Prime factorization of 6987 in exponential form is:
6987 = 31 × 171 × 1371
Prime Factorization of 7005
Prime factors of 7005 are 3, 5, 467. Prime factorization of 7005 in exponential form is:
7005 = 31 × 51 × 4671
Now multiplying the highest exponent prime factors to calculate the LCM of 6987 and 7005.
LCM(6987,7005) = 31 × 171 × 1371 × 51 × 4671
LCM(6987,7005) = 16314645
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