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What is the Least Common Multiple of 1658 and 1662?

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 1658 and 1662 is 1377798.

LCM(1658,1662) = 1377798

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Least Common Multiple of 1658 and 1662 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1658 and 1662, than apply into the LCM equation.

GCF(1658,1662) = 2
LCM(1658,1662) = ( 1658 × 1662) / 2
LCM(1658,1662) = 2755596 / 2
LCM(1658,1662) = 1377798

Least Common Multiple (LCM) of 1658 and 1662 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1658 and 1662. First we will calculate the prime factors of 1658 and 1662.

Prime Factorization of 1658

Prime factors of 1658 are 2, 829. Prime factorization of 1658 in exponential form is:

1658 = 21 × 8291

Prime Factorization of 1662

Prime factors of 1662 are 2, 3, 277. Prime factorization of 1662 in exponential form is:

1662 = 21 × 31 × 2771

Now multiplying the highest exponent prime factors to calculate the LCM of 1658 and 1662.

LCM(1658,1662) = 21 × 8291 × 31 × 2771
LCM(1658,1662) = 1377798