Compare 660 vs 667

Property	660	667
Type	composite number	semiprime
Unique factors	4	2
Total factors	5	2
Prime factorization	2² × 3¹ × 5¹ × 11¹	23¹ × 29¹
Prime factorization	2 × 2 × 3 × 5 × 11	23 × 29
Divisors count	24	4
Divisors	1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660	1, 23, 29, 667
Number of properties	0	1
Semiprimes		199th
Roman numberals	DCLX	DCLXVII
Base 2	1010010100₂	1010011011₂
Base 3	220110₃	220201₃
Base 4	22110₄	22123₄
Base 5	10120₅	10132₅
Base 6	3020₆	3031₆
Base 7	1632₇	1642₇
Base 8	1224₈	1233₈
Base 9	813₉	821₉
Base 10	660₁₀	667₁₀
Base 11	550₁₁	557₁₁
Base 12	470₁₂	477₁₂
Base 13	3ba₁₃	3c4₁₃
Base 14	352₁₄	359₁₄
Base 15	2e0₁₅	2e7₁₅
Base 16	294₁₆	29b₁₆