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