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What is the Least Common Multiple of 979 and 998?

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 979 and 998 is 977042.

LCM(979,998) = 977042

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Least Common Multiple of 979 and 998 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 979 and 998, than apply into the LCM equation.

GCF(979,998) = 1
LCM(979,998) = ( 979 × 998) / 1
LCM(979,998) = 977042 / 1
LCM(979,998) = 977042

Least Common Multiple (LCM) of 979 and 998 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 979 and 998. First we will calculate the prime factors of 979 and 998.

Prime Factorization of 979

Prime factors of 979 are 11, 89. Prime factorization of 979 in exponential form is:

979 = 111 × 891

Prime Factorization of 998

Prime factors of 998 are 2, 499. Prime factorization of 998 in exponential form is:

998 = 21 × 4991

Now multiplying the highest exponent prime factors to calculate the LCM of 979 and 998.

LCM(979,998) = 111 × 891 × 21 × 4991
LCM(979,998) = 977042