
integer, natural,
positive, counting number, odd
131 ― 32nd prime number,
divisible by 1 & 131
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001100010011001100110001%31%33%31131131\0031\0033\0031\31\33\31\u0031\u0033\u0031\u{31}\u{33}\u{31}\x31\x33\x31