Compare 661663 vs 661669

Property	661663	661669
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	661663¹	331¹ × 1999¹
Prime factorization	661663	331 × 1999
Divisors count	2	4
Divisors	1, 661663	1, 331, 1999, 661669
Number of properties	2	1
Isolated primes	42109th
Primes	53694th
Semiprimes		141582nd
Roman numberals
Base 2	10100001100010011111₂	10100001100010100101₂
Base 3	1020121122001₃	1020121122021₃
Base 4	2201202133₄	2201202211₄
Base 5	132133123₅	132133134₅
Base 6	22103131₆	22103141₆
Base 7	5424022₇	5424031₇
Base 8	2414237₈	2414245₈
Base 9	1217561₉	1217567₉
Base 10	661663₁₀	661669₁₀
Base 11	412132₁₁	412138₁₁
Base 12	27aaa7₁₂	27aab1₁₂
Base 13	1a2222₁₃	1a2228₁₃
Base 14	1331b9₁₄	1331c1₁₄
Base 15	d10ad₁₅	d10b4₁₅
Base 16	a189f₁₆	a18a5₁₆