2 squared times 7
28 = 22 x 71
28 = 22*7
28 = 256
22 x 7 = 28
256 = 28
3.7 bilion = 28*58*37
Oh, what a happy little question! In exponential form, 28 is written as 2^2 * 7. Isn't that just a lovely way to express that number? Just imagine those little exponents and numbers all working together to create something beautiful.
28 = 22 x 71
2.8 × 101or2.8E1
4 * 4 * 4 * 4 (i.e. 44) = 256 (base 10). In base 2 (binary) this is:100000000.Which is 28.
4 = 22 So 4*4*4*4 = 44 = (22)4 = 22*4 = 28
prime factorizations:2x2x7