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What is the Least Common Multiple of 47402 and 47421?

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 47402 and 47421 is 2247850242.

LCM(47402,47421) = 2247850242

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Least Common Multiple of 47402 and 47421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47402 and 47421, than apply into the LCM equation.

GCF(47402,47421) = 1
LCM(47402,47421) = ( 47402 × 47421) / 1
LCM(47402,47421) = 2247850242 / 1
LCM(47402,47421) = 2247850242

Least Common Multiple (LCM) of 47402 and 47421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47402 and 47421. First we will calculate the prime factors of 47402 and 47421.

Prime Factorization of 47402

Prime factors of 47402 are 2, 137, 173. Prime factorization of 47402 in exponential form is:

47402 = 21 × 1371 × 1731

Prime Factorization of 47421

Prime factors of 47421 are 3, 11, 479. Prime factorization of 47421 in exponential form is:

47421 = 32 × 111 × 4791

Now multiplying the highest exponent prime factors to calculate the LCM of 47402 and 47421.

LCM(47402,47421) = 21 × 1371 × 1731 × 32 × 111 × 4791
LCM(47402,47421) = 2247850242