Compare 840 vs 851

Property	840	851
Type	composite number	semiprime
Unique factors	4	2
Total factors	6	2
Prime factorization	2³ × 3¹ × 5¹ × 7¹	23¹ × 37¹
Prime factorization	2 × 2 × 2 × 3 × 5 × 7	23 × 37
Divisors count	32	4
Divisors	1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840	1, 23, 37, 851
Number of properties	0	1
Semiprimes		257th
Roman numberals	DCCCXL	DCCCLI
Base 2	1101001000₂	1101010011₂
Base 3	1011010₃	1011112₃
Base 4	31020₄	31103₄
Base 5	11330₅	11401₅
Base 6	3520₆	3535₆
Base 7	2310₇	2324₇
Base 8	1510₈	1523₈
Base 9	1133₉	1145₉
Base 10	840₁₀	851₁₀
Base 11	6a4₁₁	704₁₁
Base 12	5a0₁₂	5ab₁₂
Base 13	4c8₁₃	506₁₃
Base 14	440₁₄	44b₁₄
Base 15	3b0₁₅	3bb₁₅
Base 16	348₁₆	353₁₆