Identify the Prime Factors of 21 and 28 by Prime Factorization:
Prime Factorization of 21: 21 = 3 x 7 = 31 x 71
Prime Factorization of 28: 28 = 2 x 2 x 7 = 22 x 71
Prime Factors of 21 and 28: 2, 3 and 7
Least Common Multiple of 21 and 28 is the product of their Prime Factors raised to the highest occurrence (largest exponent) of each factor:
LCM(21,28) = 22 x 31 x 71
LCM(21,28) = 4 x 3 x 7
LCM(21,28) = 84
Least Common Multiple of 21 and 28 by Prime Factorization
The solution above and all other related solutions were provided by the Least Common Multiple by Prime Factorization Application.
