Yes, both 2 and 7 are prime numbers.
The prime factorization of 28 is 2 * 2 * 7 or 2^2 * 77x2x2
8 is not prime since 8 = 2 * 2 * 2. 7 is prime.
The prime factors of 56 are 2 and 7 are 2×2×2×7, or 2^3×7.
2 and 7 are both prime numbers.
The prime factors are: 2, 7
2 and 7 are the prime factors of 28.
The prime factorization of 28 is: 2 x 2 x 7
The prime factors of 56 are: 2*2*2*7 or 23 * 7.
2 x 2 + 7 = 11. It is prime.
1, 2, 7, 14, 49, 98 2 and 7 are prime.
As a product of its prime factors: 2*2*2*3*5*7*7*7 = 41160
Prime factors of 70: 2, 5 and 7 Prime factors of 98: 2, 7 and 7