<h3>
Answer: 7</h3>
The list of single digit primes is {2,3,5,7}. The largest prime is 7, so B = 7 is the largest possible value.
Also note how 707,747 rounds to 708,000 when rounding to 3 significant figures.
8-2(6-4:2)
8-2(6-2)
8-2*4
8-8=0
The triangle is equilateral