10**46 is too big to calculate tan precisely

[sekrasoft]

This issue is for future generations who will try run the script in XXII+ century under python 3 and exceed 10**16. Please note that tan(x) doesn't make sense for x > 10**sys.float_info.dig because tan uses floating point numbers.

prime_tan/tan-big-v0.py

Lines 31 to 34 in df1d075

	while value <= 10**46: # go big or go home
	this_int = round(value,0)
	if abs(math.tan(this_int)) >= this_int: