"It is the sum of four consecutive primes (101 + 103 + 107 + 109). 420 is a zero of the Mertens function and is sparsely totient. It is a pronic number, and the smallest number divisible by the number ...
It was like 2 years ago on a raining halloween night my brother invited his friend to come over so he brought his ps2 and ddrmax.he didn't have the dance pad so i wanted to play with the regular ps2 ...