Multiplication Table
ตารางการคูณ
10 by 10 multiplication table
10 by 20 multiplication table
20 by 20 multiplication table
Factors - ตัวประกอบ, ปัจจัย
- ปัจจัยของ 6 คือ 1, 2, 3 และ 6
- “ตัวประกอบ” มากกว่าคำว่า “ปัจจัย” ครับ
factor table
จำนวนเฉพาะ - prime numbers
Definition: a prime number is a whole number greater than 1 that has exactly two distinct factors: 1 and itself
- The numbers above that are blank are called prime numbers.
- They have no factors, except 1 and the number itself (e.g. 11 only has factors of 1 and 11)
- Prime numbers from 1 to 100 are:
- 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
prime factorization
