3 x 7 x 19 = 399
The factors of 399 are: 1, 3, 7, 19, 21, 57, 133, 399.
1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995 3, 5, 7 and 19 are prime.
The common factors are: 1, 3
There is more than one possible answer. The prime factors of 16 are 2, 2, 2, and 2. It has four prime factors, but only one distinct prime factor. The prime factors of 24 are 2, 2, 2, and 3. It has four prime factors, but only two distinct prime factors. The prime factors of 36 are 2, 2, 3, and 3. It has four prime factors, but only two distinct prime factors. The prime factors of 40 are 2, 2, 2, and 5. It has four prime factors, but only two distinct prime factors. The prime factors of 54 are 2, 3, 3, and 3. It has four prime factors, but only two distinct prime factors. The prime factors of 56 are 2, 2, 2, and 7. It has four prime factors, but only two distinct prime factors. The prime factors of 60 are 2, 2, 3, and 5. It has four prime factors, but only three distinct prime factors. The prime factors of 81 are 3, 3, 3, and 3. It has four prime factors, but only one distinct prime factor. The prime factors of 84 are 2, 2, 3, and 7. It has four prime factors, but only three distinct prime factors. The prime factors of 88 are 2, 2, 2, and 11. It has four prime factors, but only two distinct prime factors. The prime factors of 90 are 2, 3, 3, and 5. It has four prime factors, but only three distinct prime factors.
399 is not prime as it has more than two factors which are 1 and itself as it has many other combinations of numbers to resolve the question so no 399 is not prime
3 x 7 x 19 = 399
399 is not a prime number because it has more than two factors which can be shown by the prime factorization of 399 i.e. P.F. of 399 = 3x7x19.
3 x 7 x 19 = 399
The factors of 399 are: 1, 3, 7, 19, 21, 57, 133, 399.
1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995 3, 5, 7 and 19 are prime.
The prime factorization of 399 is 3 x 7 x 19. 21 wouldn't be included since it isn't a prime number.
1, 3, 7, 19, 21, 57, 133, 399
1, 3, 7, 19, 21, 57, 133, 399
399 = 3 * 7 * 19
The common factors are: 1, 3
Prime factors are factors that are also prime numbers.