Natural Numbers Book
Learn about the importance and beauty of counting numbers.
Table of Contents
- Prime factorization
- Integer products
- Prime Divide Method n1d
- Can we divide by 3
- Number Systems and Tables
- Roman numerals to base-10 conversions
- Prime-factorization theorem
- Prime Multiple Sieves
- Numbers getting bigger
- LCM and HCF
- Visual Factor Pairs
- HCF
- LCM and HCF of Two numbers
- Archive
Integer products
The product obtained by multiplying any two natural numbers, provided that neither of these numbers is 1, will always result in a composite number.
Roman numerals to base-10 conversions
Visual Factor Pairs
Prime Numbers- can only be divided by themselves and 1.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239
Semiprime Numbers -exactly two prime factors.
4 (2 × 2)[br]6 (2 × 3)[br]9 (3 × 3)[br]10 (2 × 5)[br]14 (2 × 7)[br]15 (3 × 5)[br]21 (3 × 7)[br]22 (2 × 11)[br]25 (5 × 5)[br]26 (2 × 13)[br]33 (3 × 11)[br]34 (2 × 17)[br]35 (5 × 7)[br]49 (7 × 7)[br]...
Triprime Numbers -exactly three prime factors.
8 (2, 2, 2)[br]12 (2, 2, 3)[br]27 (3, 3, 3)[br]30 (2, 3, 5)[br]42 (2, 3, 7)[br]66 (2, 3, 11)[br]70 (2, 5, 7)[br]78 (2, 3, 13)[br]102 (2, 3, 17)[br]110 (2, 5, 11)[br]114 (2, 3, 19)[br]138 (2, 3, 23)[br]154 (2, 7, 11)[br]...