1. Numbers
  2. Compare 661 vs 672

Compare 661 vs 672

Property661672
Typeprimecomposite number
Unique factors13
Total factors17
Prime factorization661125 × 31 × 71
Prime factorization6612 × 2 × 2 × 2 × 2 × 3 × 7
Divisors count224
Divisors1, 6611, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
Number of properties50
Additive primes65th 
Centered decagonal primes8th 
Primes121st 
Pythagorean primes57th 
Twin primes (2nd member)30th 
Roman numberalsDCLXIDCLXXII
Base 21010010101210101000002
Base 322011132202203
Base 4221114222004
Base 5101215101425
Base 63021630406
Base 71633716507
Base 81225812408
Base 981498269
Base 106611067210
Base 115511156111
Base 124711248012
Base 133bb133c913
Base 143531436014
Base 152e1152ec15
Base 16295162a016
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