22, 28, 82 and 88.
((7-2) * 4) + 8 = (5 * 4) + 8 = 20 + 8 = 28
28/42
28 is not a prime number because it is divisible by 2, 4, 7, and 14. Prime numbers are only divisible by 1 and themselves without any other factors.
7, 14, 28, 56, 903
22, 28, 82 and 88.
((7-2) * 4) + 8 = (5 * 4) + 8 = 20 + 8 = 28
This is the way to do it.. Factorize 4,28 using prime numbers only (Prime factorization) till you get 1,1. The prime numbers used are 2,2 & 7 Therefore HCF(4,28)= 2*2*7 = 28.
28/42
28 is not a prime number because it is divisible by 2, 4, 7, and 14. Prime numbers are only divisible by 1 and themselves without any other factors.
7, 14, 28, 56, 903
2 x 14 = 28
2X2X2+1X3=28
Among the factors of 28, 2 and 7 are the only prime numbers.
1234
How about: 2+6+8+12 = 28 as one example
(4 x 5) + (2 x 4) = 28