RADIUS OF CIRCLE

1000-digit Fibonacci number The Fibonacci sequence is defined by the recurrence relation: F n = F n −1 + F n −2 , where F 1 = 1 and F 2 = 1. Hence the first 12 terms will be: F 1 = 1 F 2 = 1 F 3 = 2 F 4 = 3 F 5 = 5 F 6 = 8 F 7 = 13 F 8 = 21 F 9 = 34 F 10 = 55 F 11 = 89 F 12 = 144 The 12th term, F 12 , is the first term to contain three digits. What is the index of the first term in the Fibonacci sequence to contain 1000 digits? I know that if you have learned programming(Whatever may be the source) you should have come across this sequence called as Fibonacci sequence named after Fibonacci . Even if you have not come across this sequence at any time in your life, not a problem then to. Fibonacci is a very simple sequence. we start with 0,1, the next number will be 1(0+1), next number will be 2(1+1), next number will be 3(2+1) and so on. Briefly present number in the sequence is the sum of the previous two terms in the sequence. Now to solve ...